4.5
(442)
6,747
riders
38
rides
No traffic touring cycling routes in Alto Bowl Open Space Preserve traverse a varied topography of rolling hills, oak woodlands, and open grasslands. The preserve features paths that wind through forested sections, including redwood groves along Larkspur Creek, and exposed ridges offering expansive views. Moderate elevation changes are present, with both dedicated paved bike paths and fire roads suitable for touring cyclists. This network connects to wider recreational areas, providing options for extended rides.
Last updated: August 20, 2026
5.0
(3)
98
riders
47.2km
03:52
1,320m
1,320m
This difficult 29.3-mile touring cycling loop in Mount Tamalpais State Park offers challenging climbs and panoramic views of the Bay Area.
5.0
(2)
64
riders
33.3km
02:37
430m
430m
Cycle a moderate 20.7-mile loop around Phoenix and Bon Tempe Lakes, enjoying diverse terrain, scenic views, and wildlife spotting.

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5.0
(2)
24
riders
18.4km
01:19
150m
150m
Cycle 11.4 miles (18.4 km) to Tennessee Beach via Sausalito-Mill Valley Trail, a moderate route with ocean views in Marin Headlands.
112
riders
31.4km
03:00
750m
750m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
86
riders
41.9km
03:48
1,010m
1,010m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Alto Bowl Open Space Preserve
At the end of the gradual Tennessee Valley Road, the last mile or so unpaved but smooth gravel, awaits the natural sandy wide beach cove. The steep coastal trails climbing on either side are hiking only.
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Mount Tam East Peak offers some of the most majestic views north of the bay. From this vantage point, you can see all of Marin, along with Point Reyes to the north and Oakland and San Francisco to the south. The stunning panoramic vistas make the journey well worth the effort. There are restrooms and picnic tables, ideal for a snack or lunch while you capture some incredible photos.
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West of Lake Lagunitas, Bon Tempe Lake is a reservoir managed by Marin Municipal Water District. It features striking scenery, with lush trees, clear water, and a peaceful atmosphere.
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Mount Tamalpais State Park is a majestic area in the heart of Marin County, with sweeping hillsides covered in fantastic redwood forest, open grasslands, sturdy chaparral, and wooded oaklands. The views from Mount Tampais boast breathtaking vistas of the Pacific Ocean, San Francisco Bay and City, the Marin County Hills, Mount Diablo, and the East Bay. You can even see the Farallon Islands, 25 miles out to sea. If you're lucky, you can catch an occasional glimpse of the snow-capped Sierra Nevada Mountain Range, nearly 150 miles away. The Park is a haven for cyclists, hikers, wildlife watchers, or those who wish to find a beautiful spot for an afternoon picnic.
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This tidal sanctuary runs along the Mill Valley-Sausalito Pathway and the Charles F. McGlashan Pathway. More than 400 species of migratory birds rest here after their long flights, and if you pass through in the early morning or late evening, the sunrises and sunsets reflect beautifully on the surface of this 106-acre marsh.
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There are over 40 dedicated no traffic touring cycling routes in Alto Bowl Open Space Preserve. These routes range from easy to difficult, offering diverse options for all skill levels.
The preserve offers varied terrain suitable for touring cyclists, including dedicated paved bike paths and fire roads. You'll find paths winding through oak woodlands, open grasslands, and even redwood groves along Larkspur Creek, with generally moderate elevation changes.
Yes, there are 5 easy touring cycling routes that are well-suited for families. These routes typically feature gentler gradients and stable surfaces, providing a pleasant experience for all ages.
Spring is an excellent time to visit, as the area comes alive with vibrant wildflowers such as California poppy, iris, and lupine. The weather is generally mild, making for comfortable rides. Autumn also offers pleasant conditions with cooler temperatures and beautiful foliage.
Many routes offer stunning views. From elevated points, you can enjoy panoramic vistas of Mount Tamalpais, the Richmond-San Rafael Bridge, Tiburon Ridge, and even the San Francisco skyline on clear days. "Horse Hill" is a beloved local landmark known for its horse pastures and impressive views.
Yes, several routes offer loop options. For a moderate challenge, consider the Phoenix Lake to Bon Tempe Lake loop, which provides a scenic circuit around two beautiful lakes. Another moderate option is the Paradise Beach County Park โ Immigrant Point Overlook loop from Corte Madera.
Absolutely. Alto Bowl is well-connected to a wider network of trails. It links to other preserves like Camino Alto and Horse Hill preserves, and further to Blithedale Summit. The Bob Middagh Trail also connects to the Mill Valley / Sausalito Multiuse Pathway, allowing for longer, more extensive cycling adventures.
The preserve is home to diverse wildlife. You might spot American kestrels, red-tailed hawks, and northern harriers overhead. While less frequently seen, fox, raccoon, deer, coyote, and bobcat also inhabit the area, especially in quieter sections.
The area is highly rated by the komoot community, with an average score of 4.7 stars from over 270 ratings. Reviewers often praise the peaceful environment away from urban hustle, the varied terrain, and the impressive panoramic views of the surrounding natural beauty and landmarks.
Yes, for experienced touring cyclists seeking a challenge, there are 21 difficult routes. An example is the demanding Stinson Beach Overlook & Mount Tamalpais loop via Panoramic Highway, which features significant elevation gains and rewards with spectacular views.
While specific parking details vary by trailhead, the preserve is generally accessible. Many trailheads offer designated parking areas. It's advisable to check specific route details on komoot for the most convenient parking options for your chosen starting point.
While the preserve is primarily accessed by car, some areas may be reachable via public transport connections to nearby towns like Mill Valley or Corte Madera. From there, you might be able to cycle to the preserve's entry points, especially those connecting to the Mill Valley / Sausalito Multiuse Pathway.


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