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Tolay Lake Regional Park

5869 Cannon Lane, Petaluma
  • Biking
  • Birding
  • Equestrian Trails
  • Fishing
  • Hiking & Walking Trails
  • Picnic Area

Tolay Lake Regional Park is a unique property in the hills southeast of Petaluma. The park features a seasonal freshwater lake, Tolay Creek, wetlands, grasslands, and ridges with views of San Pablo Bay and San Francisco.

At 3,434 acres, the park is the largest Regional Park and provides critical watershed and habitat protections. The site is known for its bird populations, including the burrowing owl and golden eagle, and has significant archaeological and ranching histories. Grazing continues within the park.

A master plan is being prepared to fully open the park to the general public in 2018. In the interim, public access for hiking, birding, mountain biking, horseback riding and picnicking is allowed through a free permit program. The park also hosts school field trips and guided hikes throughout the year and the Tolay Fall Festival each October.

The park is comprised of the 1,769-acre Tolay Lake Ranch property purchased by the Sonoma County Agricultural Preservation and Open Space District and transferred to Regional Parks and the 1,665-acre Tolay Creek Ranch property purchased and transferred by the Sonoma Land Trust. 


Tolay Lake Regional Park offers 8.6 miles of trails that may be accessed with a day-use permit or on a guided hike.

Permit Program

The free day-use permit program allows the public to visit Tolay Lake Regional Park on weekends once they've completed an online orientation and obtained a permit.

Cultural and Natural History

The history of the Tolay Lake Regional Park property ranges from Native Americans to pioneers and immigrants and is known to span over 8,000 years.

Park Information


April - September: Permit-holders only Friday, Saturday and Sunday from 8 AM to sunset 

October - March: Permit-holders only Saturday and Sunday from 8 AM to sunset. Trails closed during Tolay Fall Festival

Allowed on leash


$7 or free for members

Tolay Lake Regional Park

5869 Cannon Lane

Petaluma, CA 94954
38.20542556, -122.5214575

Park Map


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