Personal

The City Nature Challenge (CNC) is an annual four-day global bioblitz where participants around the world find and document wildlife in their own cities. Kicking off Friday, April 26 at 12:01 am in each time zone, CNC runs through 11:59 pm on Monday, April 29.

From Tuesday, April 30 through Monday, May 5 the online community will collaborate to identify species that were photographed during the Challenge, with the total number of observations and highlights from around the world announced on Tuesday, May 6.

Participating is easy: just use the free mobile app 

 to make and share observations of wild plants, animals, and fungi in any of the nine Bay Area counties. Visit our 

 for more information on Bay Area CNC events.

By registering for this event, you agree to share your registration information with the organizers of SF Climate Week.