Tolay Lake Regional Park offers nearly 12 miles of trails originating from the park center accessed from Cannon Lane. Hikers, mountain bikers, and equestrians may combine several trails to form looped routes or longer out-and-back excursions.
With the park's daily opening on Oct. 27, 2018, visitors will have access for the first time to the southern, 1,600-acre section of the park via a 2-mile extension of the West Ridge Trail. The out-and-back hike provides an 8-mile round-trip excursion to the southern reaches of Tolay Creek with views of the Tolay Valley, Petaluma River Valley, and San Pablo Bay.
Another popular destination is the Three Bridges Vista Point. This popular 5-mile hike follows the Causeway Trail across seasonal Tolay Lake and climbs through oak woodland to join the East Ridge Trail. The trail ends at a vista point, where views take in the park and much of San Pablo Bay, including the Richmond-San Rafael Bridge, Bay Bridge, and Highway 37 overpass.
Other hiking options include shorter trips along Tolay Creek and visits to several ponds.
Most trails cross open grassland and offer limited shade, so bring plenty of water and sun protection.
Leashed dogs and equestrians are welcome on trails. Grazing takes place in the park, so visitors may encounter livestock along the trail.