4.8
(38)
2,074
riders
26
rides
Road cycling around Lagunitas-Forest Knolls, situated in the San Geronimo Valley, offers diverse terrain for cyclists. The region is characterized by rolling hills, redwood-shaded roads, and serene waterways such as Lagunitas Creek and San Geronimo Creek. It provides access to a natural landscape featuring coniferous forests and proximity to coastal areas. Marin County is known for its varied road cycling opportunities, catering to different fitness levels.
Last updated: April 26, 2026
5.0
(4)
170
riders
77.1km
03:39
870m
870m
Embark on the Hicks Valley Road Loop for a rewarding racebike experience through Marin County's varied terrain. This moderate route spans 47.9 miles (77.1 km) and features a significant 2864…
5.0
(3)
128
riders
108km
04:49
1,110m
1,110m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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3.5
(2)
87
riders
41.3km
01:59
560m
560m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
28
riders
54.3km
02:32
590m
590m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
25
riders
32.7km
01:30
310m
310m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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The park pays homage to a 19th-century fishing village of Chinese immigrants who harvested shrimp from the bay. Much of the village has been preserved, and for a couple bucks you can pay to enter and explore the old town and pier.
1
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Good supporter of Marin Biking and nice lot to start your ride from and have a beer after
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Steep heading West can have traffic on SFD
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Embark on an adrenaline-fueled mountain biking adventure through Big Rock. The trail reaches its peak at the towering landmark, a colossal rock that adds a unique touch to the experience. Exercise caution on the descent; the pavement can get slippery, adding an exhilarating challenge to this thrilling ride.
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The two open space preserves meet in this valley of stately redwood trees that's refreshingly cool even in summer, which is welcome before or after the climbs that go both directions in and out of this valley.
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There are over 20 road cycling routes around Lagunitas-Forest Knolls, catering to various skill levels. This includes 4 easy routes, 13 moderate routes, and 5 difficult routes, offering a wide range of options for exploration.
The region is characterized by diverse terrain, including rolling hills, redwood-shaded roads, and serene creeks like San Geronimo Creek and Lagunitas Creek. You'll find routes with significant elevation gains for challenging rides, as well as more relaxed options through picturesque landscapes.
Yes, for experienced cyclists seeking a challenge, routes like Nick's Cove and Boat Launch – Tomales loop from Woodacre offer considerable elevation gain, reaching over 1100 meters (3600 feet) over its 107.7 km distance. Marin County also offers iconic climbs such as Mount Tamalpais.
Several excellent loop routes are available. The Hicks Valley Road Loop is a popular moderate option known for its scenic views. Another favorite is the Sausalito Path – Nicasio loop from Sausalito, which offers varied terrain through Marin County's landscapes.
Many routes offer views of the region's natural beauty. You might encounter picturesque creeks like San Geronimo Creek and Lagunitas Creek, or ride through coniferous forests. Notable natural monuments nearby include Alamere Falls and the unique Pygmy (dwarf) sargent cypress forest 🌲🌲. You can also find viewpoints like Coast Trail Abalone Point.
Yes, the area is rich with waterways. You can find routes that pass by Nicasio Reservoir and Stafford Lake Park. The Alpine Dam is also a significant feature in the broader Marin County cycling landscape.
Marin County generally offers good cycling conditions year-round. However, the spring and fall often provide the most pleasant weather with mild temperatures and less chance of extreme heat or heavy rain, making them ideal for exploring the diverse routes.
While many road cycling routes involve shared roads, the broader Marin County area, accessible from Lagunitas-Forest Knolls, does offer paved trails suitable for families. For example, parts of the Cross Marin Trail, featured in the Fairfax – Cross Marin Trail loop from Marin Civic Center, can be more family-friendly.
Parking is generally available in and around the small communities of Lagunitas-Forest Knolls. Many cyclists also start their rides from nearby Fairfax, which is a well-known cycling hub and offers various parking options as a gateway to West Marin's routes.
The area is highly rated by the komoot community, with an average score of 4.5 stars from over 32 reviews. Cyclists often praise the diverse terrain, the beauty of the redwood-shaded roads, and the serene environment of the San Geronimo Valley, along with the challenging climbs and scenic views.
Lagunitas-Forest Knolls maintains a rural charm, and while specific cyclist-focused establishments might be limited, you can find local cafes and pubs in the community and nearby towns like Fairfax that welcome cyclists. These spots offer a chance to refuel and relax after a ride.
Generally, permits are not required for road cycling on public roads in Marin County, including the paved roads on Mount Tamalpais. However, it's always advisable to check local regulations for any specific areas or state parks you plan to enter, especially if venturing onto unpaved trails.


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