Upcoming Events

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  Sun, Apr 27

  Rocks on the Move / 

  Rock City parking area

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  Apr 27, 2025, 9:30 AM – 2:00 PM

  Rock City parking area, S Gate Rd, Danville, CA 94506, USA

  Reservation Required
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  Multiple Dates

  Sat, May 03

  Natural History of Plants Walk / 

  Mitchell Canyon Visitor Center

  Learn more

  May 03, 2025, 1:00 PM – 3:30 PM

  Mitchell Canyon Visitor Center, 96 Mitchell Canyon Rd, Clayton, CA 94517, USA

  Reservation Required
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  Sun, May 04

  Mount Diablo Wildflower Walk / 

  Mitchell Canyon Visitor Center

  Learn more

  May 04, 2025, 9:00 AM – 12:00 PM

  Mitchell Canyon Visitor Center, 96 Mitchell Canyon Rd, Clayton, CA 94517, USA

  Reservation Required
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  Wed, May 07

  Forest Bathing / 

  Webinar

  Learn more

  May 07, 2025, 7:00 PM – 8:00 PM

  Webinar

  Registration Reqired
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  Multiple Dates

  Sat, May 10

  Twin Peaks Wildflower Hike / 

  Mitchell Canyon Visitor Center

  Learn more

  May 10, 2025, 9:30 AM – 1:30 PM

  Mitchell Canyon Visitor Center, 96 Mitchell Canyon Rd, Clayton, CA 94517, USA

  Reservation required (see below)
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  Multiple Dates

  Sat, May 17

  Wildflower and Pollinator Walk / 

  Mitchell Canyon Visitor Center

  Learn more

  May 17, 2025, 9:00 AM – 12:30 PM

  Mitchell Canyon Visitor Center, 96 Mitchell Canyon Rd, Clayton, CA 94517, USA

  Reservation required (see below)
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  Sun, May 18

  Peregrine Wander / 

  Castle Rock Recreational Area

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  May 18, 2025, 9:30 AM – 12:00 PM

  Castle Rock Recreational Area, 1700 Castle Rock Rd, Walnut Creek, CA 94598, USA

  Reservation Required
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  Multiple Dates

  Wed, May 21

  Wonder Hikes 2025 / 

  Mitchell Canyon Visitor Center

  Learn more

  May 21, 2025, 8:30 AM – 12:30 PM

  Mitchell Canyon Visitor Center, 96 Mitchell Canyon Rd, Clayton, CA 94517, USA

  Reservation required
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  Sat, Jun 21

  Summer Solstice Saunter / 

  Mitchell Canyon Visitor Center

  Learn more

  Jun 21, 2025, 7:00 PM – 9:30 PM

  Mitchell Canyon Visitor Center, 96 Mitchell Canyon Rd, Clayton, CA 94517, USA

  What critter pollinates this unusual flower? Join us to see for yourself...
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  Multiple Dates

  Fri, Jul 25

  Common Poorwill Hike / 

  Mitchell Canyon Visitor Center

  Learn more

  Jul 25, 2025, 7:00 PM – 10:30 PM

  Mitchell Canyon Visitor Center, 96 Mitchell Canyon Rd, Clayton, CA 94517, USA

  Reservation required