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United States
California
Marin County

Tomales Bay State Park

The best MTB trails in Tomales Bay State Park

By Fede from komoot

·

Updated May 28, 2026

If you've ever tried to plan mountain biking in Tomales Bay State Park, you know how quickly the options can get confusing. It's tough to tell which routes are genuinely worth your time, especially when the park itself has specific rules. We get it, and that's exactly why we've put together this guide. Our komoot community has ridden, mapped, and reviewed the best mountain bike routes in the wider Tomales Bay area, so you don't have to waste a single pedal stroke on guesswork.

While mountain biking is not permitted on trails directly within Tomales Bay State Park, the surrounding region offers fantastic opportunities that capture the same coastal charm and diverse terrain. Expect a mix of forested sections, open hillsides, and stunning views of Tomales Bay and the Pacific. The routes here range from easy, rolling paths perfect for a relaxed spin to more challenging climbs that reward you with expansive vistas. This area is a year-round destination, but spring and fall offer the most comfortable riding conditions.

If you're looking for a rewarding ride with a mix of scenery, we'd start with the Laguna and Coast Trail loop. This easy 5.3 miles (8.4 km) route gives you a taste of both coastal views and forested sections, making it a great introduction. For those ready for a bigger challenge and truly epic views, the Marie Dhority Bridge – Bolinas Ridge Trailhead loop from Olema is a moderate 19.0 miles (30.6 km) adventure that climbs to ridge lines with unforgettable panoramas. With over 40 mountain bikers having explored this area with komoot, you're in good company.

If you only do 3 of these routes

  1. 1

    Laguna and Coast Trail loop
  2. 2

    Marie Dhority Bridge – Bolinas Ridge Trailhead loop from Olema
  3. 3

    Tomales Bay Ecological Reserve – Inverness Ridge loop from Olema

Compare these routes at a glance

Trail

Distance

Elevation

Difficulty

Laguna and Coast Trail loop

8.45 km

120 m

Easy

Marie Dhority Bridge – Bolinas Ridge Trailhead loop from Olema

30.2 km

620 m

Moderate

Tomales Bay Ecological Reserve – Inverness Ridge loop from Olema

31.2 km

660 m

Moderate

Bolinas Ridge 🌿 – Bolinas Ridge Trailhead loop from Olema

16.0 km

320 m

Moderate

1.

Laguna and Coast Trail loop

8.45km

00:46

120m

120m

The Laguna and Coast Trail loop offers a delightful mountain biking experience through the ancient landscapes of Laguna Coast Wilderness Park. This easy 5.2-mile (8.4 km) route, with a gentle 401 feet (122 metres) of elevation gain, guides you through diverse ecosystems like oak woodlands and coastal sage scrub. You'll enjoy expansive scenic vistas from the ridges, overlooking Southern California's coastal canyons and rocky bluffs, all within a comfortable 46-minute ride.

Planning your visit to this Laguna Beach mountain biking gem is straightforward. While specific parking information for this loop isn't detailed, the park is generally well-equipped for visitors. It's wise to check the Laguna Coast Wilderness Park website for any current advisories or permit requirements, especially during peak seasons. Early mornings or late afternoons are often the best time to mountain bike, offering cooler temperatures and softer light for photography.

This trail is notable for preserving California's natural heritage, allowing you to experience landscapes that have remained largely unchanged for millennia. It's a fantastic option for those seeking a relaxed ride with high scenic payoff, making it one of the popular trails routes for a quick nature escape in the region. The park's commitment to conservation makes every pedal stroke a journey through living history.

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2.

Marie Dhority Bridge – Bolinas Ridge Trailhead loop from Olema

30.2km

02:37

620m

620m

The Marie Dhority Bridge – Bolinas Ridge Trailhead loop from Olema offers a rewarding mountain biking adventure through diverse ecosystems, from coastal rangeland to towering redwood groves. Expect a moderate 18.8-mile (30.2 km) ride with 2036 feet (621 metres) of elevation gain, taking about 2 hours and 37 minutes. The highlight is undoubtedly the panoramic views from Bolinas Ridge, stretching across Marin's Barnabe Peak to Point Reyes and even Bodega Bay, making every pedal stroke worthwhile.

Planning your ride, you'll find winter and spring are ideal for lush scenery and crisp air. Be prepared to share the multi-use Bolinas Ridge Trail with hikers and equestrians, and remember to lift your bike over the cattle traps at the trailhead. If you're considering an e-bike, Class I models are allowed on Bolinas Ridge but are restricted on connecting trails like Shafter Grade Road/Trail.

This route provides a true "Cowlifornia" experience as you ride through grasslands dotted with grazing cattle, adding a unique charm to the natural beauty. The terrain varies from graded dirt to technical sections with loose rocks, ensuring a dynamic ride. It's a fantastic option for mountain bikers looking for a challenging loop with incredible natural features and expansive vistas in the Point Reyes National Seashore area.

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Tips from the Community

Traveler
June 27, 2025, Bear Valley Visitor Center - Point Reyes National Seashore

Excellent free visitor center and natural history museum, with exhibits about the fauna and flora of the Point Reyes area, the marine resources, as well as free maps and information from the rangers. Restrooms, picnic areas, and drinking water as well as WiFi are available.

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Tomales Bay Ecological Reserve is a protected area in Marin County known for its diverse coastal habitats, including tidal marshes and mudflats. The area is home to a wide range of bird and marine life. It's a popular destination for birdwatching, especially during migratory seasons.

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Get there early limited parking

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Christopher
November 4, 2023, Kent Lake

Upper Peters Dam Road is a well shaded path that partially navigates along Kent Lake shore. On the way out you can see the large dam looming overhead.

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AaronLavanchy
October 30, 2023, Coast Trail

Coast Trail is one of the only bikeable trails with ocean access. The trail is mostly rolling double track with great views of the coastal cliffs and Pacific Ocean.

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Mostly used by school groups for hosting camps, the large campus has several housing buildings as well as a main house with kitchen, dining, and class rooms.

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Short trail to an overlook across Lagunitas Creek and the Giacomini Wetlands. A restoration project tries to protect the natural ecosystem affected by deforestation and agriculture that accelerated the siltation of Tomales Bay.

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Frequently Asked Questions

What is the difficulty level of mountain biking in Tomales Bay State Park?

Tomales Bay State Park offers a range of mountain biking experiences. You'll find a mix of easy, moderate, and some more challenging routes. Out of the 11 available trails, 3 are rated easy, 6 are moderate, and 2 are considered difficult, providing options for various skill levels.

Are there mountain bike trails suitable for beginners in Tomales Bay State Park?

Yes, beginners can find suitable mountain bike trails in Tomales Bay State Park. There are 3 easy routes available. A good option to start with is the Laguna and Coast Trail loop, which is 8.4 km long and offers a gentle ride through coastal scenery and forested sections.

What are some longer or more challenging mountain bike routes in Tomales Bay State Park?

For those seeking a longer or more challenging ride, Tomales Bay State Park has several moderate and difficult options. The Bolinas Ridge Trail loop from Olema is a moderate 40.0 km path with significant elevation gain and expansive views. Another moderate option is the Tomales Bay Ecological Reserve – Inverness Ridge loop from Olema, covering 31.2 km.

Are there any loop mountain bike trails in Tomales Bay State Park?

Yes, many of the mountain bike trails in Tomales Bay State Park are designed as loops, offering varied scenery without retracing your steps. Examples include the easy Laguna and Coast Trail loop and the moderate Marie Dhority Bridge – Bolinas Ridge Trailhead loop from Olema.

What can I see along the mountain bike trails in Tomales Bay State Park?

Mountain biking in Tomales Bay State Park offers opportunities to see diverse coastal landscapes and nearby attractions. You might pass by beautiful beaches like Shell Beach or Alan Sieroty Beach. The trails also provide views of Tomales Bay itself, and you could even stop near the Tomales Bay Oyster Company for a local treat.

What do other mountain bikers enjoy the most about mountain biking in Tomales Bay State Park?

The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the diverse landscape, which includes a mix of forested areas, open hillsides, and scenic views of Tomales Bay. The variety of terrain, from gentle paths to challenging climbs, is also frequently highlighted.

How long are the mountain bike trails in Tomales Bay State Park?

The mountain bike trails in Tomales Bay State Park vary significantly in length. You can find shorter, easy routes like the Laguna and Coast Trail loop at 8.4 km, which takes about 46 minutes. Longer, moderate routes such as the Bolinas Ridge Trail loop from Olema extend up to 40.0 km, requiring several hours to complete.

Are there any family-friendly mountain biking options in Tomales Bay State Park?

Yes, Tomales Bay State Park has easy-rated trails that can be suitable for families. The Bear Valley Trail – Divide Meadow loop from Olema is an easy 13.4 km route that could be a good option for a family outing, offering a less strenuous ride.

What kind of wildlife might I encounter on the trails?

Tomales Bay State Park is a protected coastal California ecosystem, so you might encounter various plant life and wildlife typical of the region. While specific sightings are never guaranteed, the park is home to diverse bird species and other local fauna. Always observe wildlife from a respectful distance.

What is the best time of year for mountain biking in Tomales Bay State Park?

Given its coastal proximity, Tomales Bay State Park generally offers pleasant conditions for mountain biking throughout much of the year. However, checking local weather forecasts before your ride is always recommended, especially for fog or rain, which can impact trail conditions.

How many mountain bike trails are available in Tomales Bay State Park?

There are 11 mountain bike trails documented in Tomales Bay State Park on komoot, offering a variety of experiences for riders of different skill levels.

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