Pets are not permitted in the park.The park is very small and can get very crowded. To protect the wildlife, other visitors, and your pet, we suggest that you visit nearby areas such as Muir Beach, the Coastal Trail, and some trails in the Marin Headlands where they are permitted on leash. Visit the Marin Headlands Visitor Center for maps that show dog-friendly trails within the Marin Headlands.
Marin County is a playground of trails for humans and their pets alike. The area is managed by several different agencies. Although Mount Tamalpais State Park does not allow pets on trails in general, dogs are permitted on leash on almost all trails of the Marin Municipal Water District and Marin County Open Space District.