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  • BioBlitz in Elkins Park

    Elkins Park Free Library 563 Church Rd, Elkins Park, PA, United States

    Join us as Ryan from TTF walks us through how we can use the iNaturalist app to learn more about the wildlife all around us. Participate in a watershedwide effort to document wildlife. Bring your smart device as there will be a guided nature exploration where you can practice using the app. First we’ll meet at the library for a quick rundown of the project requirements, then it’s off to High School Park! Learn how to document wildlife observations across the TTF Watershed. Please register here. 

  • City Nature Challenge 2024

    City Nature Challenge 2024

    Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

    Free

  • City Nature Challenge 2024

    City Nature Challenge 2024

    Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

    Free

  • Spring Adopt-a-Tree Treeplanting!

    Riverbend Environmental Education Center 1950 Spring Mill Road, Gladwyne, PA, United States

    Join us with your family and friends to adopt and plant trees at Riverbend. Spring is a wonderful time to plant trees, just as the preserve is coming back to life. Planting trees helps combat climate change and maintain our local water supply, as trees keep excess stormwater runoff from heading to the Schuylkill River watershed. Spend the morning with us at Riverbend enjoying: -Planting trees and learning about the trees that call Riverbend home -Playing tree-tastic games -Filling out an adoption certificate for the tree you planted -And participating in the Philadelphia City Nature Challenge BioBlitz! Registration is required,

    Free – $35

  • City Nature Challenge 2024

    City Nature Challenge 2024

    Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

    Free

  • Riverbend’s Spring Bird Walk

    Riverbend Environmental Education Center 1950 Spring Mill Road, Gladwyne, PA, United States

    Riverbend in collaboration with Bird Town, PA invite you to walk with birder and conservationist, Phil Witmer as he leads families on a leisurely walk around the preserve at Riverbend. Check out the many species of birds that call Riverbend their home and learn why their important to our preserve!

  • BioBlitz at The Woodlands

    The Woodlands, 4000 Woodland Avenue, Philadelphia, PA 19104, USA

    Join us for an exciting BioBlitz on April 28th from 10:00 am to 11:30 am at The Woodlands during the 2024 City Nature Challenge where people from all over the world collaborate to document wildlife in their city! In partnership with The Woodlands, Philadelphia Mycology Club, City Nature Challenge and Feminist Bird Club participants will use the app iNaturalist to explore the biodiversity of The Woodlands (an incredible green space located in West Philadelphia) all while participating in community science! Community science data collected through iNaturalist observations is key to help monitor urban biodiversity health. Whether you're a seasoned naturalist or a

    Free

  • City Nature Challenge 2024

    City Nature Challenge 2024

    Help Philadelphia take on the world while you connect with nature in the 2024 City Nature Challenge. Beginning on Friday, April 26 at 12:01 am in each time zone, the City Nature Challenge runs through Monday, April 29, 11:59 pm. The global event, co-organized by San Francisco’s California Academy of Sciences and the Natural History Museum of Los Angeles County, calls on current and aspiring community scientists, nature and science fans, and people of all ages and education backgrounds to observe and submit pictures of wild plants, animals, and fungi using the free mobile app iNaturalist. From Friday, April 26

    Free

  • Celebrate Trails Day on Cobbs Creek Trail

    Celebrate Trails Day in Cobbs Creek will celebrate its sixth year running on Saturday, April 26th 2025 from 10am-2pm at the playground/park area at Thomas Ave & Cobbs Creek Parkway just north of Whitby Ave. Brought to you by Clean Air Council and Fairmount Park Conservancy this free event will kick off beginning at 10:00am with over a dozen exhibitors offering family friendly games, resources, information, education and activities for residents to connect with. The event will conclude with a ribbon cutting for a new playspace that will offer playful learning and early literacy opportunities for children in Cobbs Creek.

    Free

  • Fungadelphia Festival

    Schuylkill Center for Environmental Education 8480 Hagy's Mill Road, Philadelphia, PA, United States

    Philadelphia Mycology Club’s second annual Fungadelphia Festival is returning to the Schuylkill Center this year! 🎉 It's family-friendly, fungi festival filled fun with guided walks, lectures, workshops, vendors, food, crafts, and more. WHEN: Sat., Aug. 23, 11 - 3 WHERE: Schuylkill Center for Environmental Education, 8480 Hagy’s Mill Road, Philadelphia, PA FREE/Donation-based registration required

    Free

  • City Nature Challenge 2026

    Washington Square Park Philadelphia, United States

    The City Nature Challenge (CNC) is a four-day bioblitz where cities around the world record as much wildlife as possible. Wildlife is measured by the total number of observations, the number of species and the number of people making observations. CNC is also a great way to engage in community science and help document the biodiversity of our urban areas. The event takes place using the iNaturalist website and app. Any observation photo, geotagged from anywhere in the seven-county Philadelphia area (Philadelphia, Delaware, Montgomery and Bucks counties in Pennsylvania, and Camden, Gloucester and Burlington counties in New Jersey) and time-stamped

  • City Nature Challenge 2026

    Laurel Hill Cemetery West 225 Belmont Ave, Bala Cynwyd, PA

    The City Nature Challenge (CNC) is a four-day bioblitz where cities around the world record as much wildlife as possible. Wildlife is measured by the total number of observations, the number of species and the number of people making observations. CNC is also a great way to engage in community science and help document the biodiversity of our urban areas. The event takes place using the iNaturalist website and app. Any observation photo, geotagged from anywhere in the seven-county Philadelphia area (Philadelphia, Delaware, Montgomery and Bucks counties in Pennsylvania, and Camden, Gloucester and Burlington counties in New Jersey) and time-stamped

  • Organizing DNA: How Neighborhood‑Level Power Drives Today’s Movements

    Reinvestment Fund 1700 Market Street, Philadelphia, United States

    Jeremy Nowak began his career as a community organizer, known for his ability to build power at the neighborhood and block level to achieve larger-scale change. His work was rooted in deep listening, relationship‑building, and the belief that ordinary people could transform their communities when given the tools to act. The practices he championed continue to shape organizers and campaigns today. A recent New Yorker article explored the effectiveness of creating broad-based coalitions of independent, and often pluralistic units to drive change. Hyper local organizing allows for numerous leaders to emerge, build networks, and train others — an approach that