Martin Griffin Preserve: Open to the Public Spring 2016

Come hike the more than eight miles of trails at ACR's Martin Griffin Preserve. Visit the newt ponds and enjoy the wildflowers. Knowledgeable Ranch Guides will answer your questions.

April 2 - July 31, 2016:
open 10:00am - 4:00pm
Weekdays (except Mondays) open by reservation 2:00pm - 4:00pm

Call 415.868.9244, ext. 110 for more information.

Donations greatly appreciated.

Click here for directions.

The 2015 Season: Putting Nature First

Martin Griffin Preserve Temporarily Closed to the Public

ACR is committed to protecting the natural resources of its properties using science-based management. In an effort to promote reestablishment of the heron and egret nesting colony that was abandoned by the birds after 60 years, ACR will continue closure of the Martin Griffin Preserve to the public during the 2015 nesting season.

ACR’s Education Programs for students continue in the preserve's Volunteer Canyon, with no interruption to nature-based learning.

ACR offices remain open during this time. 


Call 415.868.9244 ext. 110


Photo Credits: 

  • Mike Witkowski