The Bay Nature events calendar features events sponsored by Bay Area nature organizations from Sonoma to Santa Cruz. Find guided hikes, learn about Bay Area wildlife, enjoy nature festivals, and more!

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City Nature Challenge April 27 to April 29

April 27, 2019 @ 12:00 pm - April 29, 2019 @ 12:00 pm

| Free

Can the Bay Area win twice in a row? This year the competition is even higher with over 150 cities participating globally! We need everyone’s help documenting nature in all nine Bay Area counties to show the world how engaged our residents are and how biodiverse the Bay Area is! Check the iNat website for a list of bioblitz events around the Bay.

More Information

You don’t need to attend a bioblitz to be a citizen scientist. We encourage everyone to go explore their local biodiversity and upload their observations to iNaturalist. New to iNaturalist? Check out how to get started here:

For more information please check our webpage or if you have any questions please email us at


April 27, 2019 @ 12:00 pm
April 29, 2019 @ 12:00 pm




Your Name (this will not appear on the event listing)
Suzanne Whelan


Exact location TBD, RSVP for details
San Jose, California 95131 + Google Map
(510) 621-3147