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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April 2019
Saturday, April 20 - Sunday, December 15

Take the Bay Ridge Challenge

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September 2019
Saturday, September 21 @ 9:00 am - 12:00 pm

Coastal Clean Up Day

Capitol Expressway, 1001 E Capitol Expressway, San Jose, 95121 + Google Map
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Saturday, September 21 @ 11:00 am - 1:00 pm
|Recurring Event (See all)

An event every week that begins at 11:00 am on Saturday, repeating until December 28, 2019

Saturday Science Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Saturday, September 21 @ 1:00 pm - 4:00 pm
|Recurring Event (See all)

An event every week that begins at 1:00 pm on Saturday, repeating until December 28, 2019

Afternoon Art Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Saturday, September 21 @ 2:00 pm
|Recurring Event (See all)

An event every week that begins at 2:00 pm on Saturday, repeating until December 28, 2019

Meet the Animal Keeper

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Sunday, September 22 @ 8:45 am - 11:30 am
|Recurring Event (See all)
Weekly on Sunday Mornings (8:45am-11:30am)

Eco-Sail to the Marin Headlands (Summer and Fall 2019)

Schooner Freda B, Sausalito Yacht Harbor, Slip 465, Sausalito, CA 94965 + Google Map
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Saturday, September 28 @ 9:00 am - 11:00 am

Examining the Past & Present: People, Place & Parks

Doran Regional Park, 201 Doran Beach Road, Bodega Bay, CA 94923 + Google Map
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Saturday, September 28 @ 11:00 am - 1:00 pm
|Recurring Event (See all)

An event every week that begins at 11:00 am on Saturday, repeating until December 28, 2019

Saturday Science Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Saturday, September 28 @ 11:00 am - 4:00 pm

Sharktoberfest

Greater Farallones National Marine Sanctuary Visitor Center, 991 Marine Drive, The Presidio, SF, CA 94129 + Google Map
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Saturday, September 28 @ 1:00 pm - 4:00 pm
|Recurring Event (See all)

An event every week that begins at 1:00 pm on Saturday, repeating until December 28, 2019

Afternoon Art Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Saturday, September 28 @ 2:00 pm
|Recurring Event (See all)

An event every week that begins at 2:00 pm on Saturday, repeating until December 28, 2019

Meet the Animal Keeper

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Sunday, September 29 @ 8:45 am - 11:30 am
|Recurring Event (See all)
Weekly on Sunday Mornings (8:45am-11:30am)

Eco-Sail to the Marin Headlands (Summer and Fall 2019)

Schooner Freda B, Sausalito Yacht Harbor, Slip 465, Sausalito, CA 94965 + Google Map
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October 2019
Saturday, October 5 @ 11:00 am - 1:00 pm
|Recurring Event (See all)

An event every week that begins at 11:00 am on Saturday, repeating until December 28, 2019

Saturday Science Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Saturday, October 5 @ 11:00 am - 2:00 pm

UC Davis Raptor Center Comes to Vacaville’s Peña Adobe Park

Pena Adobe Historic Park, Off Interstate 80 at Pena Adobe Exit, To the left of Lagoon Valley Park Entrance, Vacaville, CA 95687 + Google Map
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Saturday, October 5 @ 1:00 pm - 4:00 pm
|Recurring Event (See all)

An event every week that begins at 1:00 pm on Saturday, repeating until December 28, 2019

Afternoon Art Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
More »
Saturday, October 5 @ 2:00 pm
|Recurring Event (See all)

An event every week that begins at 2:00 pm on Saturday, repeating until December 28, 2019

Meet the Animal Keeper

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Sunday, October 6 @ 8:45 am - 11:30 am
|Recurring Event (See all)
Weekly on Sunday Mornings (8:45am-11:30am)

Eco-Sail to the Marin Headlands (Summer and Fall 2019)

Schooner Freda B, Sausalito Yacht Harbor, Slip 465, Sausalito, CA 94965 + Google Map
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Saturday, October 12 @ 9:00 am - 12:00 pm

Coyote Creek Cleanup for World Habitat Day

Tully Ballfields, 850 Tully Road, San Jose, 95111 + Google Map
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Saturday, October 12 @ 10:00 am - 1:00 pm
|Recurring Event (See all)

An event every month that begins at 10:00 am on day Second of the month, repeating indefinitely

You’re Invited to our Second Saturday on the Richmond Greenway!

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Saturday, October 12 @ 10:00 am - 2:00 pm

Native Plant Sale by CNPS Milo Baker Chapter and Laguna Foundation Open House

Laguna Environmental Center, 900 Sanford Road, Santa Rosa, CA 95401 + Google Map
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Saturday, October 12 @ 11:00 am - 1:00 pm
|Recurring Event (See all)

An event every week that begins at 11:00 am on Saturday, repeating until December 28, 2019

Saturday Science Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Saturday, October 12 @ 11:00 am
|Recurring Event (See all)

One event on October 13, 2019 at 11:00 am

One event on October 19, 2019 at 11:00 am

One event on October 20, 2019 at 11:00 am

Tolay Fall Festival

Tolay Lake Regional Park, 5869 Lakeville Highway, Petaluma, CA + Google Map
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Saturday, October 12 @ 1:00 pm - 4:00 pm
|Recurring Event (See all)

An event every week that begins at 1:00 pm on Saturday, repeating until December 28, 2019

Afternoon Art Drop-in Workshops

Randall Museum, 199 Museum Way, San Francisco, 94114 + Google Map
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Ongoing Events


Volunteers for Outdoor California -- Weekend Project Dragoon Gulch


In October, V-O-Cal will end the 2019 season with its first-ever project in Sonora, a Gold Rush town of approximately 5,000 people nestled in the foothills of the Sierra Nevada Mountains. We'll build a new trail in Dragoon Gulch, a network of trails through oak woodlands that's walkable to downtown Sonora but still feels remote. Lots of fun and a sense of community We anticipate having a gre...

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