Pets are not permitted. The only exception is service dogs. The park is very small and can get very crowded. We need to protect the wildlife, the other visitors, and your pet. However, pets on leash are permitted in some nearby areas, such as Muir Beach, the Coastal Trail, and some trails in the Marin Headlands.

Also, Marin County is a playground of trails for humans and their pets alike, managed by several different agencies. In the Mount Tamalpais area, the state park does not allow pets on trails in general, but they are permitted on leash on almost all trails of the Marin Municipal Water District and Marin County Open Space District.