Join Brooklyn Bridge Park Conservancy in the Park for City Nature Challenge, taking place April 25-April 28! Contribute to making NYC a City Nature Challenge winner in this year’s international competition by using the iNaturalist app to document wildlife in the park and throughout NYC. 

Please download the iNaturalist app on your phone and or visit iNaturalist.org to create an account prior to arriving. Search and join the City Nature Challenge 2025: Brooklyn Bridge Park to document wildlife in the park during the 4 day event. You can follow along for updates on all the findings with the Brooklyn Bridge Park community as we strive to win the NYC Green Space Race!

Cities around the world collaborate to share observations of nature in the 2025 City Nature Challenge, taking place April 25-April 28, 2025. Learn more about the international competition here.