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United States
California
Marin County

San Geronimo

The best walks and hikes around San Geronimo

4.9

(81)

1,272

hikers

118

hikes

Hiking around San Geronimo, located in Marin County, California, offers diverse natural landscapes for outdoor activities. The region features rolling hills, lush forests including redwood groves, and meandering creeks such as San Geronimo and Larsen Creeks. Prominent natural features include San Geronimo Ridge, Mt. Barnabe, Dickson Ridge, and Whites Hill, providing varied terrain for hikers. The area also encompasses public open spaces like San Geronimo Commons, showcasing a patchwork of ecosystems.

Best hiking trails around San Geronimo

  • The most popular…

Last updated: May 12, 2026

9

hikers

#1.

Bolinas Ridge Loop

16.7km

04:53

410m

410m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

7

hikers

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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5

hikers

11.2km

03:36

480m

480m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard

2

hikers

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard
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Popular around San Geronimo

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Cycling around San Geronimo

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Tips from the Community

MFRosenbaum
June 30, 2024, Leo Cronin Fish Viewing Area

Get there early limited parking

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Matthew
February 14, 2024, Loma Alta Summit

Loma Alta literally translates to "high hill" and is the highest point in the Loma Alta Open Space Preserve. A few different dirt roads and trails lead to the bald summit that looks over the surrounding hillsides.

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This large group picnic area is a lovely spot under a shady grove of towering redwoods that sits along Lagunitas Creek. There is piped drinking water and restrooms nearby, and if it is not in use, it is an excellent place to stop for lunch. If you are bike touring with friends and wish to spend time here, you can reserve this spot through the Samuel Taylor State Parks' department website.

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Large campground with restrooms and showers in the towering forest along the San Geronimo Creek and the Cross Marin Trail. The Pioneer Trail loops to the south with a branch trail climbing up to the bolinas Ridge, whie the Papermill Trail remains flat along the creek with historic info panels about Samuel Taylor's 19th century paper mill

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Popular rock beach spot to cool off in the creek right next to the long wooden pedestrian trail bridge

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Traveler
December 23, 2020, Green Hill overlook

Sweeping views along the ridge trail, down into the valley filled by Kent Lake and beyond.

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Along San Geronimo Ridge several stands of Pygmy (dwarf) sargent cypress forest display the uniquely stunted growth on poor soils. More info at https://www.onetam.org/peak-health/sargent-cypress

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Traveler
November 27, 2020, Marie Dhority Bridge

Start of the excellent Cross Marin Trail section (which is unfortunately just a segment here, far from crossing all of Marin County), using the old rail tracks that went to Sam Taylor Mills.

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Frequently Asked Questions

How many hiking trails are available in San Geronimo?

San Geronimo offers a wide variety of hiking experiences, with over 80 trails documented on komoot. These routes cater to different preferences, ranging from easy strolls through redwood groves to more challenging climbs with significant elevation gain.

Are there hiking trails suitable for families with children in San Geronimo?

Yes, San Geronimo has several excellent options for families. The Roy's Redwood Loop Trail in Roy's Redwoods Open Space Preserve is an easy, accessible path perfect for all skill levels. Additionally, the San Geronimo Commons, a rewilded former golf course, features a 1.2-mile loop trail that is particularly accessible and enjoyable for families.

What kind of natural features can I expect to see while hiking in San Geronimo?

Hikers in San Geronimo can immerse themselves in diverse natural landscapes. The region is characterized by rolling hills, lush forests including ancient redwood groves, and meandering waterways like San Geronimo and Larsen Creeks. You'll encounter diverse ecosystems, peaceful meadows, and unique redwood circles where new trees have grown around the remnants of original mother trees. Prominent natural features include San Geronimo Ridge, Mt. Barnabe, Dickson Ridge, and Whites Hill.

Are there any challenging hikes for experienced trekkers in the San Geronimo area?

Yes, for those seeking a more strenuous adventure, the San Geronimo area provides challenging options. The Bay Area Ridge Trail to Bill's Trail via Barnabe loop in Samuel P. Taylor State Park is considered a difficult hike, offering significant elevation gain and distance. The San Geronimo Ridge Road also features trails with varying elevations and terrain, including a popular figure-eight hike covering 7 miles with substantial climbing.

What is the best time of year to go hiking in San Geronimo?

San Geronimo offers enjoyable hiking year-round, but the best time often depends on your preference. Spring brings vibrant wildflowers and lush greenery after winter rains. Fall offers pleasant temperatures and beautiful foliage. Summer is generally warm and dry, with many ridge trails providing shade. Winter can be mild, but trails might be muddy after heavy rainfall. Always check local weather conditions before heading out.

Are there any loop trails available in San Geronimo?

Yes, San Geronimo features several excellent loop trails. A popular easy option is the Roy's Redwood Loop Trail. For a moderate challenge, consider the Old Railroad Grade, Glen Fire, Smith Ridge & Sunrise loop or the San Geronimo Ridge Rd. to East Sylvestris via Green Hill loop. The Peters Dam Road to Kent Lake loop is another great choice, leading through the Mount Tamalpais Watershed.

What do other hikers enjoy most about hiking in San Geronimo?

The hiking experience in San Geronimo is highly rated by the komoot community, with an average score of 4.8 stars from over 70 reviews. Hikers often praise the region's diverse landscapes, from peaceful redwood groves to scenic ridge views, and the opportunity to explore vital creek systems. The variety of trails, catering to different ability levels, is also frequently highlighted.

Are there any specific landmarks or points of interest to look out for on the trails?

While hiking, you can discover several notable points of interest. Keep an eye out for the unique redwood circles, which are remnants of ancient forests. You might also encounter The Big Rock - Skywalker Ranch or explore the Roy's Redwoods Open Space Preserve itself, known for its accessible paths and ancient trees. The area is also rich in wildlife, especially around the creeks.

Is public transportation available to access hiking trails in San Geronimo?

Public transportation options directly to all trailheads in San Geronimo can be limited due to its rural nature. It is advisable to check local Marin Transit schedules and routes for the most up-to-date information on bus services that might connect to the San Geronimo Valley. Many visitors typically access the trailheads by car.

Where can I find parking for hiking trails in San Geronimo?

Parking is generally available at designated trailheads and open space preserves throughout the San Geronimo Valley. For example, Roy's Redwoods Open Space Preserve and San Geronimo Commons typically have parking areas. It's always recommended to arrive early, especially on weekends, as parking can fill up. Always observe posted parking regulations.

Are there any less crowded hiking options in San Geronimo?

Yes, if you're looking for a quieter experience, the open fire roads and rugged side trails around San Geronimo are an ideal choice. While popular routes like Roy's Redwoods can see more visitors, exploring the broader network of trails, particularly on weekdays or during off-peak hours, can provide ample space for a peaceful outdoor experience away from the crowds.

Can I bring my dog on the hiking trails in San Geronimo?

Many trails in Marin County, including those in the San Geronimo area, are dog-friendly, but regulations can vary by specific preserve or park. Dogs are generally permitted on leash on most fire roads and designated trails. It's always best to check the specific rules for the open space preserve or park you plan to visit before heading out with your canine companion.

Are there any cafes or places to eat near the hiking trails in San Geronimo?

The San Geronimo Valley maintains a charming rural character, but there are local amenities available. You can find cafes and small eateries in the nearby communities within the valley, such as San Geronimo or Forest Knolls, which are convenient for a post-hike refreshment. For more options, the towns of Fairfax or Point Reyes Station are a short drive away.

Most popular routes around San Geronimo

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