Please be sure to check the event organizer’s website for any last-minute changes or cancellations prior to attending.

 

Have an event that will fit well on our calendar?

Submit it here!

  • 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

    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

    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

    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 at The Woodlands

    The Woodlands 4000 Woodland Avenue, Philadelphia, PA, United States

    Join us for an exciting BioBlitz on Saturday, April 25 from 11:00 am to 12:30 pm at The Woodlands! (Raindate: 4/26) In partnership with Green Philly, The Woodlands, Feminist Bird Club Philly, Andrew the Arborist, Disability Pride PA, the Philadelphia Mycology Club and City Nature Challenge 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 during the worldwide City Nature Challenge! Community science data collected through iNaturalist observations is key to help monitor urban biodiversity health.

    $135