San Geronimo Park

• Hiking at San Geronimo Park is mostly flat – easy loops or out and back.
• San Geronimo Park has two sections, divided by Nicasio Valley Road – Larsen Meadow and San Geronimo Meadow.
• You can also journey into Roy’s Redwoods and other open space preserves. Miles of regional trails connect here.
• Larsen Creek and San Geronimo Creek support one of the last remaining populations of endangered Coho Salmon and threatened Steelhead Trout. Learn about conservation initiatives.
• Enjoy the shade of majestic heritage oaks.
• Friendly dogs on leash or under voice control are welcome.
• The West Marin village of San Geronimo is nearby.

Know Before You Go

• All groups of 20 or more must obtain a permit in advance before visiting.
• Most trails are unshaded. Wear a hat and sunscreen as needed.
• There are portable restrooms on the Larson Meadow property and at the San Geronimo Commons parking lot. Plan accordingly.
• No poo-lution. Pick up after dogs and horses. 
• Take advantage of the large public parking lot at San Geronimo Commons, 5800 Sir Francis Drake Boulevard. Do not park on West Nicasio Road, which is private property.

Take Sir Francis Drake Boulevard toward San Geronimo. 

Parking is available at the San Geronimo Commons parking lot, 5800 Sir Francis Drake Boulevard.

• Golden Gate Highway and Transportation District
• Marin Transit Trip Planner

You can also dial 511 to find out about transit options from your location.

DAY USE ONLY

• No BBQs, smoking, fires, or fireworks..
• No camping or overnight parking.
• Bikes, including electric bicycles, allowed on paved paths and roads. Speed is 15 mph or less. Must slow to 5 mph when passing others or around blind turns.
• Equestrians must keep horse waste off paths.
• Dispose of waste properly. Pack out trash and belongings.
• No firearms or weapons of any kind.
• Fishing is not permitted in creeks. Fishing in ponds is allowed with valid license and subject to California Department of Fish and Wildlife regulations.
• Permit required for groups of 20 or more people and commercial use, including tours, classes, camps, film, or photography.
• Do not follow, approach, or feed wildlife.
• Keep out of creeks, ponds, and other environmentally sensitive areas.
• No operating or landing aircraft of any kind, including drones.
• Motor vehicles not allowed, except Power-Driven Mobility Devices (OPDMD) per Title II of the Americans With Disabilities Act.

• Dogs allowed on paths and in other areas where designated.
• Dogs must be under the direct and immediate control of a responsible person. If dog is under voice control the person mush have a leash in hand. Leash must not extend 6 feet in length.
• Individuals accompanying dogs are required to clean up and dispose of pet waste.
• No dogs allowed in creeks, ponds, or other environmentally sensitive areas.
• No commercial dog walking.

Always listen to Parks staff. Rule violations can result in citation and fines. Read the official Parks regulations: Marin County Municipal Code Title 10.