Promoting a conservation ethic in people of all ages is central to our mission of Conservation in Action. Audubon Canyon Ranch offers exploration and learning opportunities for nature enthusiasts of all ages on three of its preserves: the Martin Griffin Preserve, the Bouverie Preserve and the Modini Mayacamas Preserves.

Join us on the preserves to explore seasonal changes, observe nesting birds and migrating newts, learn about native peoples' use of the land, hike past wildflower meadows and through redwood groves. Visitation is limited on all three preserves in order to ensure that human impact is kept in balance with land and habitat preservation goals.

Saturday, October 26, 2019

All day
Before 1am
Guided Nature Walk

Audubon Canyon Ranch Event Calendar

Guided Nature Walk

Oct 26 2019 - 10:00am to 12:30pm
Bouverie Preserve

**Due to the power outage, a Guided Nature Walk scheduled for Saturday, October 12 has been cancelled. We apologize for the inconvenience. Future walks are still scheduled to occur.**

Experience the beauty and rich natural history of this 535-acre preserve. Our guided nature walks are on Saturdays throughout fall and spring. Participants are divided into small groups and paired with a trained Bouverie volunteer to explore the mixed evergreen forest and flower-carpeted oak woodland. Guided Nature Walks begin at 10:00am and end at 12:30pm and are no more than 2.5 miles long.

Visitors of all ages are welcome. In order to attend a Guided Nature Walk or Twilight Hike, minors (those under the age of 18) MUST be accompanied by their parent or legal guardian.

$20 per person suggested donation. Contributions support the preservation, education and conservation science programs of Audubon Canyon Ranch. All donations are greatly appreciated!

CLICK HERE to register.

Questions? Call ACR headquarters at 415.868.9244 ext. 110

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Bouverie Preserve
Cencelled - Spiders With Gwen Heistand

Audubon Canyon Ranch Event Calendar

Cencelled - Spiders With Gwen Heistand

Oct 26 2019 - 10:00am to 4:00pm
Martin Griffin Preserve

EVENT CANCELLED **Due to severe weather alert, the Martin Griffin Preserve will be closed Saturday, October 26. We apologize for the inconvenience.**

October 26 Theme: Spiders With Gwen Heistand

Join ACR resident biologist and Director of Education Gwen Heistand for spider hikes at 11:00am and 2:00pm. For our youngest visitors, we’ll have a spider mask-making station.

Click here to register for this event.

OPEN SATURDAYS, October 12, 19 & 26, 2019 from 10:00am - 4:00pm

Visit Martin Griffin Preserve throughout our limited Fall Season, with Nature Guide-led walks, activities, or materials to open your eyes to our lovely preserve in a different way each week. Visitors are also welcome to hike our trails on their own, scoop up a newt at the ponds, peer at birds in Bolinas Lagoon through our scopes, enjoy a picnic under the redwoods, and more. Suggested donation $20. See below and check our calendar for each week's offerings:

  • Hike 8+ miles of trails
  • Nature activities for kids
  • Learn from nature guides
  • View abundant plants & wildlife
  • Visit newt ponds
  • Discover natural wonders in our Curiosity Room
  • Picnic under redwoods

For directions to Martin Griffin Preserve, click here.

Click here to register for Spiders!

From time to time, ACR must modify or cancel a program. Please consult our Event Calendar at for updates prior to coming out to Martin Griffin Preserve.

Event photo by Arnie Battaglene

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Martin Griffin Preserve