Join in an event being held by our partner organizations all around the Bay in support of the City Nature Challenge! Meet other people interested in documenting local nature, learn more about the iNaturalist platform, and help the San Francisco Bay Area win the City Nature Challenge! Click each event to find out more.

Friday, April 27th:
Briones Regional Park Bioblitz & Moth Lighting, Contra Costa County
Sugarloaf Ridge State Park Bioblitz, Sonoma County
Skyline Ridge Open Space Bird & Nature Walk, Los Altos, San Mateo County
Noe Valley Bioblitz, San Francisco

Saturday, April 28th:
San Bruno Mountain Bioblitz, San Mateo County
Palo Alto Baylands Mini Bioblitz, Santa Clara County
Lake Merritt Bioblitz, Oakland, Alameda County
Sunol Regional Wilderness Bioblitz (& free lunch!), Alameda County
Mount Diablo Mitchell Canyon Hike, Contra Costa County
Trione-Annadel State Park Bioblitz, Sonoma County
Ring Mountain Bioblitz, Tiburon, Marin County
Lake Lagunitas Bioblitz & Guided Excursions, Marin County
Tamarancho Mountain Bike Bioblitz, Marin County
China Camp Mountain Bike Bioblitz, Marin County
Presidio Bioblitz, San Francisco
Lands End Bioblitz, San Francisco
Bernal Hill Bioblitz, San Francisco

Sunday, April 29th:
Coyote Meadows Bioblitz, San Jose, Santa Clara County
Palo Alto Foothills Park Mini Bioblitz, Santa Clara County
Skegg's Mountain Bike Bioblitz, San Mateo County
Pacifica Mountain Bike Bioblitz, San Mateo County