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X-WR-CALDESC:Events for Grid Magazine
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260527T120000
DTEND;TZID=America/New_York:20260527T133000
DTSTAMP:20260528T002055
CREATED:20260520T184704Z
LAST-MODIFIED:20260520T184704Z
UID:10035891-1779883200-1779888600@gridphilly.com
SUMMARY:Noon Bird Walks at the Wissahickon Environmental Center.
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area of the park during lunchtime !  All levels of birders welcome.\n\n\n Enjoy a guided bird walk in the Andorra section of the Park during lunchtime. It is spring migration season\, and various species will be arriving throughout the next few months. Walks vary in length from 1.5 hrs to 2 hrs.  Wooded trails\, Andorra Meadow\, Harper’s Meadow and Forbidden Drive are the areas we explore.
URL:https://gridphilly.com/event/noon-bird-walks-at-the-wissahickon-environmental-center-6/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/354f3fb52e064688597afc5192db5a28.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260520T120000
DTEND;TZID=America/New_York:20260520T133000
DTSTAMP:20260528T002055
CREATED:20260513T214905Z
LAST-MODIFIED:20260513T214905Z
UID:10035457-1779278400-1779283800@gridphilly.com
SUMMARY:Noon Bird Walks at the Wissahickon Environmental Center.
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area of the park during lunchtime !  All levels of birders welcome.\n\n\n Enjoy a guided bird walk in the Andorra section of the Park during lunchtime. It is spring migration season\, and various species will be arriving throughout the next few months. Walks vary in length from 1.5 hrs to 2 hrs.  Wooded trails\, Andorra Meadow\, Harper’s Meadow and Forbidden Drive are the areas we explore.
URL:https://gridphilly.com/event/noon-bird-walks-at-the-wissahickon-environmental-center-5/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/354f3fb52e064688597afc5192db5a28.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260511T130000
DTEND;TZID=America/New_York:20260511T143000
DTSTAMP:20260528T002055
CREATED:20260429T164002Z
LAST-MODIFIED:20260504T130029Z
UID:10032660-1778504400-1778509800@gridphilly.com
SUMMARY:Love Your Park Week— Trees of the Forest Walk
DESCRIPTION:Learn to identify some of the most common trees in our local forest. Visit several champion trees that live in the Andorra Natural Area.\n\n\nFor Love Your Park Week\, come learn a little bit more about trees! Learn to identify some of the most common trees in our local forest. Visit several champion trees that live in the Andorra Natural Area\, including a Cucumber Magnolia and Tulip Poplar. FREE. \nThis event is being hosted in coordination with Love Your Park Week\, a citywide celebration of Philadelphia’s parks and public spaces. Learn more at Love Your Park Week 2026.
URL:https://gridphilly.com/event/love-your-park-week-trees-of-the-forest-walk/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/04/abaacafb49e8e63045c5bba8ba81beb4.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260505T103000
DTEND;TZID=America/New_York:20260505T123000
DTSTAMP:20260528T002055
CREATED:20260504T124516Z
LAST-MODIFIED:20260504T124516Z
UID:10034601-1777977000-1777984200@gridphilly.com
SUMMARY:Garlic Mustard Pesto Making and Weeding
DESCRIPTION:Join us as we weed out a large patch of highly invasive Garlic Mustard.  We will then proceed to the kitchen and create a tasty pesto.\n\n\nGarlic mustard (Alliaria petiolate) is a tasty plant\, and a highly invasive plant that threatens many of our native spring plants.  The leaves and stems are edible and true to its name\, taste like a combination of garlic and mustard.  Leaves and stems can be added to salads\, cooked like spinach\, or ground into a tasty garlic mustard pesto! \nJoin us as we weed out a large patch of Alliaria petiolate growing through native plants\, such as May Apple and ferns.  Then we will return to the building\, harvest the leaves and a few stems\, and create a garlic mustard pesto for eating!   \nWear long pants and sturdy shoes.  We suggest you bring a water bottle.  Bring gloves\, or we can supply you with gloves.
URL:https://gridphilly.com/event/garlic-mustard-pesto-making-and-weeding/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/05/af2dd6e2b3c9fed3ce91bd650b38894e.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260501T160000
DTEND;TZID=America/New_York:20260501T170000
DTSTAMP:20260528T002055
CREATED:20260421T010021Z
LAST-MODIFIED:20260421T010021Z
UID:10032433-1777651200-1777654800@gridphilly.com
SUMMARY:Introduction to Birding at Roxborough Library
DESCRIPTION:Curious about birding but not sure where to start? Join us for an engaging introduction focused on the birds and habitats of Roxborough and\n\n\nCurious about birding but not sure where to start? Join us for an engaging introduction focused on the birds and habitats of Roxborough and nearby areas. Presented by birding expert\, Wissahickon Environmental Center supervisor\, and Roxborough resident\, Tony Croasdale.We’ll cover the basics of bird identification\, where to go locally\, and what to look for during the peak of spring migration.What You’ll Learn:How to get started with birdingCommon local birds and habitatsTips for identifying birds during migration
URL:https://gridphilly.com/event/introduction-to-birding-at-roxborough-library/
LOCATION:Roxborough Library\, 6245 Ridge Avenue\, Philadelphia\, PA\, 19128\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/04/b8e588c346608187eed5eedfe1996d30.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260429T120000
DTEND;TZID=America/New_York:20260429T133000
DTSTAMP:20260528T002055
CREATED:20260427T014452Z
LAST-MODIFIED:20260427T014452Z
UID:10032586-1777464000-1777469400@gridphilly.com
SUMMARY:Noon Bird Walks at the Wissahickon Environmental Center.
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area of the park during lunchtime !  All levels of birders welcome.\n\n\n Enjoy a guided bird walk in the Andorra section of the Park during lunchtime. It is spring migration season\, and various species will be arriving throughout the next few months. Walks vary in length from 1.5 hrs to 2 hrs.  Wooded trails\, Andorra Meadow\, Harper’s Meadow and Forbidden Drive are the areas we explore.
URL:https://gridphilly.com/event/noon-bird-walks-at-the-wissahickon-environmental-center-4/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/354f3fb52e064688597afc5192db5a28.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260428T103000
DTEND;TZID=America/New_York:20260428T120000
DTSTAMP:20260528T002055
CREATED:20260424T194203Z
LAST-MODIFIED:20260424T194203Z
UID:10032566-1777372200-1777377600@gridphilly.com
SUMMARY:Mammals of the Wissahickon
DESCRIPTION:Learn about mammals of the Wissahickon\, including common and not so common use.  Take a walk to look for mammals and their signs.\n\n\nDuring this family-oriented program\, we will use pelts and skulls to learn about the mammals that inhabit the Wissahickon\, including some recently and rarely spotted ones. Take a walk to look for some common mammals and their signs.  FREE.
URL:https://gridphilly.com/event/mammals-of-the-wissahickon/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/04/d6e9048cd1e3f7304cca9c949d92f23b.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260425T100000
DTEND;TZID=America/New_York:20260425T120000
DTSTAMP:20260528T002055
CREATED:20260424T192918Z
LAST-MODIFIED:20260424T192918Z
UID:10032547-1777111200-1777118400@gridphilly.com
SUMMARY:Animal Tracking with Philadelphia Animal Tracking Club
DESCRIPTION:Come out for to learn about animal tracking with the Philadelphia Animal Tracking Club.\n\n\nDuring the City Nature Challenge weekend\, Join the Philadelphia Animal Tracking Club for an animal tracking walk. We will stop and look for animal tracks and signs. We welcome curiosity\, enthusiasm\, and open conversation as we all strive to further our relationships with our animal neighbors. All abilities welcome! Minors are welcome but must have a guardian over the age of 18 with them. Bring a notebook and any tracking guides you have.  Wear shoes that are protective and can get muddy. FREE.
URL:https://gridphilly.com/event/animal-tracking-with-philadelphia-animal-tracking-club/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/04/087bc6e5a16e1f4235c33c7618bfbd07.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260422T140000
DTEND;TZID=America/New_York:20260422T153000
DTSTAMP:20260528T002055
CREATED:20260409T025107Z
LAST-MODIFIED:20260409T025107Z
UID:10032180-1776866400-1776871800@gridphilly.com
SUMMARY:Earth Day Walk - Amphibians Abound!
DESCRIPTION:For this family-oriented program\, take a walk in search of salamanders\, frogs\, and toads.  Talk about clean water and Earth Day.\n\n\nTake a walk towards the Creek to search for salamanders and frogs. Identify and look at their unique features. Discuss clean water and its importance to the health of amphibians and how Earth Day helped protect it.
URL:https://gridphilly.com/event/earth-day-walk-amphibians-abound/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/04/8e8d5660cd47e63c4b11b9446c1cafec.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260422T120000
DTEND;TZID=America/New_York:20260422T133000
DTSTAMP:20260528T002055
CREATED:20260418T183020Z
LAST-MODIFIED:20260418T183020Z
UID:10032376-1776859200-1776864600@gridphilly.com
SUMMARY:Noon Bird Walks at the Wissahickon Environmental Center.
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area of the park during lunchtime !  All levels of birders welcome.\n\n\n Enjoy a guided bird walk in the Andorra section of the Park during lunchtime. It is spring migration season\, and various species will be arriving throughout the next few months. Walks vary in length from 1.5 hrs to 2 hrs.  Wooded trails\, Andorra Meadow\, Harper’s Meadow and Forbidden Drive are the areas we explore.
URL:https://gridphilly.com/event/noon-bird-walks-at-the-wissahickon-environmental-center-3/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/354f3fb52e064688597afc5192db5a28.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260420T103000
DTEND;TZID=America/New_York:20260420T123000
DTSTAMP:20260528T002055
CREATED:20260418T181616Z
LAST-MODIFIED:20260418T181616Z
UID:10032359-1776681000-1776688200@gridphilly.com
SUMMARY:Early Spring Wildflower Walk\, Bells Mill
DESCRIPTION:Starting at Bells Mill Road\, we will explore the Yellow Trail and Forbidden Drive for early spring wildflowers.\n\n\nMeet at Bells Mill Road and Forbidden Drive. We will walk uphill to see some beautiful\, planted Trilliums and then continue on the Yellow Trail looking for other spring ephemeral wildflower\, such as Spring Beauty\, Jack-in-the-Pulpit\, Jacob’s Ladder\, and May Apple. Many of these beautiful wildflowers have a short growing season before the large trees obscure the light reaching the forest floor. Free!
URL:https://gridphilly.com/event/early-spring-wildflower-walk-bells-mill/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/04/5b8889027a983de45c79270f0bde4522.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260415T120000
DTEND;TZID=America/New_York:20260415T133000
DTSTAMP:20260528T002055
CREATED:20260413T010517Z
LAST-MODIFIED:20260413T010517Z
UID:10032207-1776254400-1776259800@gridphilly.com
SUMMARY:Noon Bird Walks at the Wissahickon Environmental Center.
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area of the park during lunchtime !  All levels of birders welcome.\n\n\n Enjoy a guided bird walk in the Andorra section of the Park during lunchtime. It is spring migration season\, and various species will be arriving throughout the next few months. Walks vary in length from 1.5 hrs to 2 hrs.  Wooded trails\, Andorra Meadow\, Harper’s Meadow and Forbidden Drive are the areas we explore.
URL:https://gridphilly.com/event/noon-bird-walks-at-the-wissahickon-environmental-center-2/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/354f3fb52e064688597afc5192db5a28.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260413T130000
DTEND;TZID=America/New_York:20260413T143000
DTSTAMP:20260528T002055
CREATED:20260329T232110Z
LAST-MODIFIED:20260329T232321Z
UID:10030613-1776085200-1776090600@gridphilly.com
SUMMARY:Early Spring Wildflower Walk
DESCRIPTION:Join us for a walk through the Andorra section of the park where we look for emerging spring wildflowers.\n\n\nJoin us for a walk through the Andorra section of the park where we look for emerging spring wildflower such as Blood Root\, Spring Beauty\, Trout Lily\, and May Apple. These beautiful wildflowers have a short growing season before the large trees obscure the light reaching the forest floor. Free!
URL:https://gridphilly.com/event/early-spring-wildflower-walk/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/ed7bc9b8b003fb9492a8ccc3e0b4003c.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260401T120000
DTEND;TZID=America/New_York:20260401T133000
DTSTAMP:20260528T002055
CREATED:20260326T012429Z
LAST-MODIFIED:20260326T012449Z
UID:10030472-1775044800-1775050200@gridphilly.com
SUMMARY:Noon Bird Walks at the Wissahickon Environmental Center.
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area of the park during lunchtime !  All levels of birders welcome.\n\n\n Enjoy a guided bird walk in the Andorra section of the Park during lunchtime. It is spring migration season\, and various species will be arriving throughout the next few months. Walks vary in length from 1.5 hrs to 2 hrs.  Wooded trails\, Andorra Meadow\, Harper’s Meadow and Forbidden Drive are the areas we explore.
URL:https://gridphilly.com/event/noon-bird-walks-at-the-wissahickon-environmental-center/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/354f3fb52e064688597afc5192db5a28.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260325T120000
DTEND;TZID=America/New_York:20260325T133000
DTSTAMP:20260528T002055
CREATED:20260320T183258Z
LAST-MODIFIED:20260324T011232Z
UID:10030395-1774440000-1774445400@gridphilly.com
SUMMARY:Noon Bird Walks at the Wissahickon Environmental Center.
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area of the park during lunchtime !  All levels of birders welcome.\n\n\n Enjoy a guided bird walk in the Andorra section of the Park during lunchtime. It is spring migration season\, and various species will be arriving throughout the next few months. Walks vary in length from 1.5 hrs to 2 hrs.  Wooded trails\, Andorra Meadow\, Harper’s Meadow and Forbidden Drive are the areas we explore.
URL:https://gridphilly.com/event/noon-bird-walks-at-houston-meadow-5/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/354f3fb52e064688597afc5192db5a28.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260324T130000
DTEND;TZID=America/New_York:20260324T143000
DTSTAMP:20260528T002055
CREATED:20260320T182829Z
LAST-MODIFIED:20260320T183007Z
UID:10030391-1774357200-1774362600@gridphilly.com
SUMMARY:Early Signs of Spring Nature Walk
DESCRIPTION:Join us for a nature walk on Forbidden Drive and the Orange Trail where we look for early signs of the spring season.\n\n\nJoin us for a nature walk on Forbidden Drive and the Orange Trail where we look for early signs of the spring season\, such as Wood Ducks and Eastern Phoebes\, and Skunk Cabbage and other plants.Meet at Cedars House on Forbidden Drive.  Free.
URL:https://gridphilly.com/event/early-signs-of-spring-nature-walk/
LOCATION:The Cedars House\, 200 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/03/5d36a4a533219426d0fac318bde85ad9.jpg
GEO:40.073493;-75.243288
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=The Cedars House 200 West Northwestern Avenue Philadelphia PA 19118 United States;X-APPLE-RADIUS=500;X-TITLE=200 West Northwestern Avenue:geo:-75.243288,40.073493
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260318T120000
DTEND;TZID=America/New_York:20260318T133000
DTSTAMP:20260528T002055
CREATED:20260314T211245Z
LAST-MODIFIED:20260314T211516Z
UID:10030204-1773835200-1773840600@gridphilly.com
SUMMARY:Noon Bird Walks at Houston Meadow
DESCRIPTION:Enjoy a guided bird walk in Houston Meadow during lunchtime !  All levels of birders welcome.\n\n\nWhile our building is closed\, bird walks have been moved to Houston Meadow.  Enjoy a guided bird walk in the Houston Meadow during lunchtime. Late fall/winter is an excellent time for birding\, as the Wissahickon is host to many boreal forest species like juncos\, sparrows\, and spasuckers. If it’s too cold\, we will stay inside and watch the feeders. We will not hike if it is actively raining or snowing. However\, join us on the porch to watch the feeders. Walks vary in length from 1.5 hrs to 2 hrs.
URL:https://gridphilly.com/event/noon-bird-walks-at-houston-meadow-4/
LOCATION:Houston Playground\, 900 Grakyn Ln\, Philadelphia\, PA\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2024/12/9e4134ff42a98cfa7233b5399227474e.jpg
GEO:40.06836;-75.232531
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Houston Playground 900 Grakyn Ln Philadelphia PA United States;X-APPLE-RADIUS=500;X-TITLE=900 Grakyn Ln:geo:-75.232531,40.06836
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260312T103000
DTEND;TZID=America/New_York:20260312T133000
DTSTAMP:20260528T002055
CREATED:20260309T014108Z
LAST-MODIFIED:20260309T014409Z
UID:10030055-1773311400-1773322200@gridphilly.com
SUMMARY:Winter Salt Snapshot -  WATER TESTING
DESCRIPTION:Volunteer will help perform two tests to determine salt levels in selected water samples from Wissahickon Creek.\n\n\nWe apologize for rescheduling this program several times. The winter has been much harsher than expected\, and we had to prioritize volunteer safety. Thank you for your understanding! \nAre you interested in participating in a citizen science study?  We will be performing two tests that indicate the levels of salt in the Creek and then recording the data on water samples from locations in Wissahickon Creek.  You must be organized with an attention to detail.  Adults only.   Please send an email to WEC@phila.gov if you have questions.
URL:https://gridphilly.com/event/winter-salt-snapshot-water-testing/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/02/f09df01b0c2e17d8e7fd284a712cd933.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260311T103000
DTEND;TZID=America/New_York:20260311T133000
DTSTAMP:20260528T002055
CREATED:20260309T013656Z
LAST-MODIFIED:20260309T013917Z
UID:10030048-1773225000-1773235800@gridphilly.com
SUMMARY:Winter Salt Snapshot-  NEW DATE!
DESCRIPTION:Volunteer to help take water samples at 20 or more points along the Wissahickon Creek for determine salt levels in winter.\n\n\nWe apologize for rescheduling this program several times. The winter has been much harsher than expected\, and we had to prioritize volunteer safety. Thank you for your understanding! \nAre you interested in participating in a citizen science study? WEC staff and Friends of the Wissahickon volunteers will be taking water samples at 20 points along the Wissahickon Creek and its tributaries\, then performing two tests that indicate the levels of salt in the Creek. Water collection is 10:30 am-1:30 pm. Wear proper footwear for wet\, muddy\, or frozen conditions. Please send an email to WEC@phila.gov regarding whether you prefer collection or testing. Collecting will involve driving to a location in the park and then walking a site collection point.  We may drive our van to some points along Forbidden Drive.
URL:https://gridphilly.com/event/winter-salt-snapshot-new-date/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/02/f09df01b0c2e17d8e7fd284a712cd933.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260304T120000
DTEND;TZID=America/New_York:20260304T133000
DTSTAMP:20260528T002055
CREATED:20260303T183210Z
LAST-MODIFIED:20260303T183500Z
UID:10029961-1772625600-1772631000@gridphilly.com
SUMMARY:Noon Bird Walks at Houston Meadow
DESCRIPTION:Enjoy a guided bird walk in Houston Meadow during lunchtime !  All levels of birders welcome.\n\n\nWhile our building is closed\, bird walks have been moved to Houston Meadow.  Enjoy a guided bird walk in the Houston Meadow during lunchtime. Late fall/winter is an excellent time for birding\, as the Wissahickon is host to many boreal forest species like juncos\, sparrows\, and spasuckers. If it’s too cold\, we will stay inside and watch the feeders. We will not hike if it is actively raining or snowing. However\, join us on the porch to watch the feeders. Walks vary in length from 1.5 hrs to 2 hrs.
URL:https://gridphilly.com/event/noon-bird-walks-at-houston-meadow-3/
LOCATION:Houston Playground\, 900 Grakyn Ln\, Philadelphia\, PA\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2024/12/9e4134ff42a98cfa7233b5399227474e.jpg
GEO:40.06836;-75.232531
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Houston Playground 900 Grakyn Ln Philadelphia PA United States;X-APPLE-RADIUS=500;X-TITLE=900 Grakyn Ln:geo:-75.232531,40.06836
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260227T090000
DTEND;TZID=America/New_York:20260227T143000
DTSTAMP:20260528T002055
CREATED:20260219T180033Z
LAST-MODIFIED:20260219T180313Z
UID:10029071-1772182800-1772202600@gridphilly.com
SUMMARY:Winter Salt Snapshot Pro-  RESCHEDULED for Feb. 27
DESCRIPTION:Participate in salt study at Wissahickon Creek.  Collect water samples and analysis for effects of winter salting.\n\n\nWe apologize for having delayed the Winter Salt Snapshot twice!  The winter conditions were too harsh to safely conduct the study. \nAre you interested in participating in a citizen science study?  In the morning\, WEC staff and Friends of the Wissahickon staff and volunteers will be taking water samples at 20 points along the Wissahickon Creek and its tributaries.  Then we will bring back the samples and a few volunteers and staff will perform two test that indicate the levels of salt in the Creek.  Water collection is 9am-noon.  Testing is approximately 12:30-2:30 pm.  The majority of volunteers will be needed for collection.  \nWear proper footwear and clothing for wet\, muddy\, or frozen conditions.  You many need to drive to a location in the park to collect your samples.   \nNOTE:  Our new location is the FOW shop building at 7301 Henry Ave.  It is behind  the Parks and Rec. District 4 Maintenance Building. \nPlease contact wec@phila.gov if you have questions.  Please register on Eventbrite.
URL:https://gridphilly.com/event/winter-salt-snapshot-pro-rescheduled-for-feb-27/
LOCATION:7301 Henry Ave\, 7301 Henry Avenue\, Philadelphia\, PA\, 19128\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/02/3736af90f4c19f5e95292fd1d51fa535.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260225T120000
DTEND;TZID=America/New_York:20260225T133000
DTSTAMP:20260528T002055
CREATED:20260218T231400Z
LAST-MODIFIED:20260218T231454Z
UID:10029062-1772020800-1772026200@gridphilly.com
SUMMARY:Noon Bird Walks at Houston Meadow
DESCRIPTION:Enjoy a guided bird walk in Houston Meadow during lunchtime !  All levels of birders welcome.\n\n\nWhile our building is closed\, bird walks have been moved to Houston Meadow.  Enjoy a guided bird walk in the Houston Meadow during lunchtime. Late fall/winter is an excellent time for birding\, as the Wissahickon is host to many boreal forest species like juncos\, sparrows\, and spasuckers. If it’s too cold\, we will stay inside and watch the feeders. We will not hike if it is actively raining or snowing. However\, join us on the porch to watch the feeders. Walks vary in length from 1.5 hrs to 2 hrs.
URL:https://gridphilly.com/event/noon-bird-walks-at-houston-meadow-2/
LOCATION:Houston Playground\, 900 Grakyn Ln\, Philadelphia\, PA\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2024/12/9e4134ff42a98cfa7233b5399227474e.jpg
GEO:40.06836;-75.232531
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Houston Playground 900 Grakyn Ln Philadelphia PA United States;X-APPLE-RADIUS=500;X-TITLE=900 Grakyn Ln:geo:-75.232531,40.06836
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260218T120000
DTEND;TZID=America/New_York:20260218T133000
DTSTAMP:20260528T002055
CREATED:20260211T232935Z
LAST-MODIFIED:20260211T233157Z
UID:10028940-1771416000-1771421400@gridphilly.com
SUMMARY:Noon Bird Walks at Houston Meadow
DESCRIPTION:Enjoy a guided bird walk in Houston Meadow during lunchtime !  All levels of birders welcome.\n\n\nWhile our building is closed\, bird walks have been moved to Houston Meadow.  Enjoy a guided bird walk in the Houston Meadow during lunchtime. Late fall/winter is an excellent time for birding\, as the Wissahickon is host to many boreal forest species like juncos\, sparrows\, and spasuckers. If it’s too cold\, we will stay inside and watch the feeders. We will not hike if it is actively raining or snowing. However\, join us on the porch to watch the feeders. Walks vary in length from 1.5 hrs to 2 hrs.
URL:https://gridphilly.com/event/noon-bird-walks-at-houston-meadow/
LOCATION:Houston Playground\, 900 Grakyn Ln\, Philadelphia\, PA\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2024/12/9e4134ff42a98cfa7233b5399227474e.jpg
GEO:40.06836;-75.232531
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Houston Playground 900 Grakyn Ln Philadelphia PA United States;X-APPLE-RADIUS=500;X-TITLE=900 Grakyn Ln:geo:-75.232531,40.06836
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260205T090000
DTEND;TZID=America/New_York:20260205T120000
DTSTAMP:20260528T002055
CREATED:20260202T163114Z
LAST-MODIFIED:20260202T163235Z
UID:10028695-1770282000-1770292800@gridphilly.com
SUMMARY:Winter Salt Snapshot- Rescheduled due to Winter Conditions
DESCRIPTION:Volunteer to help take water samples at 20 or more points along the Wissahickon Creek for determine salt levels in winter.\n\n\nAre you interested in participating in a citizen science study? WEC staff and Friends of the Wissahickon volunteers will be taking water samples at 20 points along the Wissahickon Creek and its tributaries\, then performing two tests that indicate the levels of salt in the Creek. Water collection is 9am-noon. Most volunteers are needed for water collection. Testing is 12:30 to 3 pm. Where proper footwear for wet\, muddy\, or frozen conditions.  \nNOTE NEW LOCATION:  Friends of the Wissahickon Maintenance Building\, 7301 Henry Ave.  (The 2 small buildings at the back of the lot.) Please register on Eventbrite.
URL:https://gridphilly.com/event/winter-salt-snapshot-rescheduled-due-to-winter-conditions/
LOCATION:7301 Henry Ave\, 7301 Henry Avenue\, Philadelphia\, PA\, 19128\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/02/f09df01b0c2e17d8e7fd284a712cd933.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260204T120000
DTEND;TZID=America/New_York:20260204T133000
DTSTAMP:20260528T002055
CREATED:20260202T162428Z
LAST-MODIFIED:20260202T162739Z
UID:10028691-1770206400-1770211800@gridphilly.com
SUMMARY:Noon Bird Walks
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area during lunchtime!  All levels of birders welcome.\n\n\nEnjoy a guided bird walk in the Andorra Natural Area during lunchtime. Late fall/winter is an excellent time for birding\, as the Wissahickon is host to many boreal forest species like juncos\, sparrows\, and spasuckers. If it’s too cold\, we will stay inside and watch the feeders. We will not hike if it is actively raining or snowing. However\, join us on the porch to watch the feeders. Walks vary in length from 1.5 hrs to 2 hrs.
URL:https://gridphilly.com/event/noon-bird-walks-23/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2024/12/9e4134ff42a98cfa7233b5399227474e.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260204T110000
DTEND;TZID=America/New_York:20260204T120000
DTSTAMP:20260528T002055
CREATED:20260126T161320Z
LAST-MODIFIED:20260126T161401Z
UID:10028620-1770202800-1770206400@gridphilly.com
SUMMARY:Birding for Beginners
DESCRIPTION:It’s a new year and time for a new hobby! Winter is a great time to explore birding. Come explore birding!\n\n\nIt’s a new year and time for a new hobby! Winter is a great time to explore birding. Our year-round birds are easier to spot when the trees are leafless.  Also learn about the birds who reside here in winter and will return to their breeding grounds farther north in the spring.  Practice proper binocular technique and learn what type of binoculars to purchase.  Explore bird guides and free online resources for birding. Then join us for our Noon Bird Walk!
URL:https://gridphilly.com/event/birding-for-beginners/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/01/6bf270c96749d6e84e504b6171216cc2.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260128T120000
DTEND;TZID=America/New_York:20260128T133000
DTSTAMP:20260528T002055
CREATED:20260122T144221Z
LAST-MODIFIED:20260122T144221Z
UID:10028565-1769601600-1769607000@gridphilly.com
SUMMARY:Noon Bird Walks
DESCRIPTION:Enjoy a guided bird walk in the Andorra Natural Area during lunchtime!  All levels of birders welcome.\n\n\nEnjoy a guided bird walk in the Andorra Natural Area during lunchtime. Late fall/winter is an excellent time for birding\, as the Wissahickon is host to many boreal forest species like juncos\, sparrows\, and spasuckers. If it’s too cold\, we will stay inside and watch the feeders. We will not hike if it is actively raining or snowing. However\, join us on the porch to watch the feeders. Walks vary in length from 1.5 hrs to 2 hrs.
URL:https://gridphilly.com/event/noon-bird-walks-22/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2024/12/9e4134ff42a98cfa7233b5399227474e.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260123T173000
DTEND;TZID=America/New_York:20260123T190000
DTSTAMP:20260528T002055
CREATED:20260119T181217Z
LAST-MODIFIED:20260119T181217Z
UID:10028507-1769189400-1769194800@gridphilly.com
SUMMARY:Friday Night Nocturnal Wildlife Walk
DESCRIPTION:Join Tony Croasdale to look for “creatures of the night\,” including Screech Owls\, Great-horned Owls\, and Flying Squirrels.\n\n\nTake a short walk with us around the Tree House grounds listening for owls and using our thermal imager to detect nocturnal wildlife like flying squirrels and opossums. Please register on Eventbrite. FREE.
URL:https://gridphilly.com/event/friday-night-nocturnal-wildlife-walk/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/01/3dfbd2f7ec6ec960a34c3a39bb847b20.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260123T130000
DTEND;TZID=America/New_York:20260123T143000
DTSTAMP:20260528T002055
CREATED:20260119T182024Z
LAST-MODIFIED:20260119T182024Z
UID:10028508-1769173200-1769178600@gridphilly.com
SUMMARY:Animal Tracks ID Walk and Indoor Activity
DESCRIPTION:Take a walk to search for animal tracks.  Learn the track and gait patterns of some common animals.  Make a plaster replica track cast.\n\n\nSnow and mud create the places we can explore for animal tracks. Learn the tracks patterns and gait of common animals in the Wissahickon. Enjoy making a plaster mold of track replica inside. Cost $2 per child
URL:https://gridphilly.com/event/animal-tracks-id-walk-and-indoor-activity/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/01/522362d292949633d279400c0d3bc432.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260122T130000
DTEND;TZID=America/New_York:20260122T143000
DTSTAMP:20260528T002055
CREATED:20260119T152234Z
LAST-MODIFIED:20260119T181314Z
UID:10028505-1769086800-1769092200@gridphilly.com
SUMMARY:Winter Ecology Walk
DESCRIPTION:How plants and animals adapt to winter? Why do evergreens not freeze?   Let’s take a walk looking at and discussing winter ecology.\n\n\nHow plants and animals adapt to winter? Why do evergreens not freeze?  Why do broad-leaf trees lose their leaves\, and what happens inside the tree?  \nWhat happens to insects in winter…to fish\, to frogs and toads?  \nLet’s take a walk looking at and discussing winter ecology!
URL:https://gridphilly.com/event/winter-ecology-walk/
LOCATION:Wissahickon Environmental Center (Tree House)\, 300 West Northwestern Avenue\, Philadelphia\, PA\, 19118\, United States
ATTACH;FMTTYPE=image/jpeg:https://gridphilly.com/wp-content/uploads/2026/01/5f711a095b9806d97a06fda64281cad9.jpg
END:VEVENT
END:VCALENDAR