6
hikers
Mill Valley - Sausalito Path
04:13
16.6km
50m
Hiking
The Mill Valley - Sausalito Path offers a delightful journey through Marin County's wetlands and along Richardson Bay, providing expansive views of Mount Tamalpais and even glimpses of San Francisco. This multi-use route, following a former railway line, is predominantly flat and wide, making it an easy and enjoyable experience for all ages and abilities. You'll wind through the ecological richness of Bothin Marsh Preserve, a haven for migratory birds, and pass by charming houseboat communities.
To make the most of your visit, plan to arrive early, especially on weekends, as this is Marin County's most-used route and parking can fill up quickly. The trail is accessible year-round, with pleasant conditions for a moderate 10.3-mile (16.6 km) hike that takes approximately 4 hours and 13 minutes to complete, with a gentle 160 feet (49 metres) of elevation gain. Public transport is also a viable option to reach the trailheads in Mill Valley or Sausalito.
Beyond its scenic beauty, this path holds historical significance as a former railway line, now serving as a crucial link between Mill Valley and Sausalito. It's a segment of the larger San Francisco Bay Trail and is renowned for its accessibility, welcoming everyone from cyclists to families with strollers. The wetlands along the route are a prime spot for birdwatching, attracting pelicans and various raptors, adding a rich wildlife element to your outing.
Last updated: June 9, 2026
Waypoints
Start point
Bus stop
Get Directions
4.29 km
Mill Valley-Sausalito Path Trail Head, wetlands entrance
Highlight • Trail
Tip by
4.85 km
Pickleweed Inlet crossing
Highlight • Bridge
Tip by
6.25 km
Bothin Marsh Preserve
Highlight • Natural
Tip by
6.79 km
Coyote Creek Mouth at Richardson Bay
Highlight • Trail
Tip by
7.58 km
Seaplane port
Highlight • Rest Area
Tip by
11.4 km
Bothin Marsh Preserve
Highlight • Natural
For more info, check out: marincountyparks.org/depts/pk/divisions/open-space/bothin-marsh
Tip by
16.6 km
End point
Bus stop
Way Types & Surfaces
Way Types
15.0 km
939 m
627 m
< 100 m
Surfaces
10.0 km
3.24 km
2.40 km
866 m
< 100 m
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Elevation
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Weather
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Today
Saturday 4 July
17°C
10°C
0 %
Additional weather tips
Max wind speed: 17.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
What is the terrain like on the Mill Valley - Sausalito Path?
The path is predominantly flat and wide with an asphalt surface, making it very accessible. Some sections also feature a gravel shoulder, which is sometimes used for horseback riding. Its gentle grade is due to its history as a former railway line.
Where can I park to access the Mill Valley - Sausalito Path?
You can find parking at various points along the path. A common starting point is near the Mill Valley-Sausalito Path Trail Head, wetlands entrance in Mill Valley. Parking is also available in both Mill Valley and Sausalito, allowing you to start from either end.
Is the Mill Valley - Sausalito Path dog-friendly?
Yes, the path is dog-friendly. Please ensure your dog is kept on a leash and that you clean up after them to maintain the trail's cleanliness for all users and protect the local wildlife.
What kind of scenery and landmarks can I expect to see along the route?
The route offers diverse scenery, including expansive views of Richardson Bay and the region's dominant promontory, Mount Tamalpais. You'll traverse wetlands and marshes, particularly through the Bothin Marsh Preserve, and pass by a unique houseboat neighborhood. Notable points include the Pickleweed Inlet crossing and the Coyote Creek Mouth at Richardson Bay.
What is the best time of year to hike this path?
The path is enjoyable year-round, but spring and fall offer particularly pleasant weather for hiking and cycling. These seasons are also excellent for birdwatching, as the wetlands become a haven for various migratory species.
Are there any permits or entrance fees required for the Bothin Marsh Preserve section of the trail?
No, there are no permits or entrance fees required to access the Bothin Marsh Preserve or any part of the Mill Valley - Sausalito Path. It is a publicly accessible multi-use pathway.
What wildlife can I spot along the path?
The trail's passage through wetlands and marshes, especially the Bothin Marsh Preserve, makes it an excellent spot for wildlife observation. Birdwatchers can frequently see pelicans, egrets, raptors, and various other shorebirds, particularly during migration season.
Does the trail connect to other well-known paths?
Yes, the Mill Valley - Sausalito Path is an integral part of the larger San Francisco Bay Trail network. It also overlaps with sections of the Marin Coastal Bike Route.
Is the path suitable for families and those with mobility challenges?
Absolutely. The path's flat, wide, and paved surface makes it highly accessible for families with strollers, individuals using wheelchairs, and people of all ages and fitness levels. It's a very gentle and enjoyable route.
How long does it typically take to complete the Mill Valley - Sausalito Path?
The full 16.6 km (10.3 miles) out-and-back route is estimated to take around 4 hours and 13 minutes to hike. However, as a multi-use path, many people cycle or run it, which would take less time. You can also choose to do shorter sections.
Are there places to eat or get refreshments near the trail?
Yes, since the path connects Mill Valley and Sausalito, you'll find numerous cafes, restaurants, and shops in both towns. Sausalito, in particular, offers many waterfront dining options and art galleries accessible directly from the path.
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