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Bike touring routes & trails
United States
California
Marin County

Muir Woods Cycle Loop

Moderate

3.1

(2)

95

riders

Muir Woods Cycle Loop

01:18

15.8km

420m

Cycling

The Muir Woods Cycle Loop plunges you into the lush, verdant landscapes surrounding the famous redwood forests of Marin County. This touring cycling route offers a true taste of the region's challenging, hilly terrain, with roads winding through dense forests and providing glimpses of the Pacific Ocean. You'll experience the unique atmosphere of the coastal redwood environment, even if you're not cycling directly through Muir Woods National Monument itself. The sustained climbs and descents make for a memorable and demanding ride.

Planning your visit for this moderate 9.8-mile (15.8 km) loop, which features 1372 feet (418 metres) of elevation gain and typically takes around 1 hour and 17 minutes, is crucial. The area's roads are well-maintained but often narrow, with traffic, especially on weekends. Given the steep grades, consider tackling this route during cooler parts of the day or year to make the significant ascents more manageable. Always be prepared for a workout.

This route is a prime example of the challenging and scenic cycling available in the Muir Woods area, known for its demanding climbs and panoramic views. While direct access through Muir Woods National Monument is restricted for cyclists, the surrounding roads offer an immersive experience of the redwood forests and coastal vistas. It's an excellent option for experienced touring cyclists looking for a significant physical challenge combined with stunning natural beauty in Marin County.

Last updated: June 9, 2026

Tips

Includes a segment in which cycling is not permitted

After 6.11 km for 177 m

Waypoints

A

Start point

Parking

Get Directions

1

6.19 km

Muir Woods National Monument

Highlight • Natural Monument

Muir Woods National Monument protects 554 acres (224 ha) coast redwood (Sequoia sempervirens) forests, of which 240 acres (97 ha) are old growth, one of only a few such stands remaining in the San Francisco Bay Area. It is part of the Golden Gate National Recreation Area on Mount Tamalpais near the Pacific coast, in southwestern Marin County, 12 miles (19 km) north of San Francisco, California. en.wikipedia.org/wiki/Muir_Woods_National_Monument
Trails are pedestrian only, except for mountain-bike legal Deer Park Fire Rd komoot.com/highlight/197729 which passes through the more remote northwestern corner of the park.
komoot.com/tour/13627075

Tip by

2

10.4 km

Dias Ridge Entrance

Highlight • Trail

Just behind the row of postboxes, it looks as though you’re about to enter a farm — the trail begins on the right.

Tip by

3

15.8 km

Homestead Valley Trail leads downhill a few yards off this big Trailhead parking at the intersection used as a key meeting place by many hikers and bikers, some dropping down to the bay, others over to Muir Woods when that National Park parking is overflowing on Summer weekends

Tip by

B

15.8 km

End point

Parking

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Way Types & Surfaces

Way Types

11.3 km

4.29 km

202 m

< 100 m

< 100 m

< 100 m

Surfaces

9.50 km

6.03 km

199 m

112 m

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Elevation

Elevation

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Highest point (230 m)

Lowest point (10 m)

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Weather

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Friday 3 July

14°C

10°C

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Frequently Asked Questions

What is the difficulty level of the Muir Woods Cycle Loop?

This loop is generally considered challenging, often categorized as a 'Best of the Best' ride due to significant elevation gain. Expect substantial climbs, with some sections reaching a 10% grade. However, these strenuous ascents are rewarded with thrilling descents on well-paved roads.

Can I cycle through Muir Woods National Monument?

No, cycling is not permitted within Muir Woods National Monument itself. However, this loop routes in its vicinity provide access to the surrounding natural beauty and allow you to experience the towering redwoods from its periphery. If you wish to enter the monument, bike parking is available at Alice Eastwood Campground, and you can then hike in.

Do I need a permit or pay an entrance fee for the Muir Woods National Monument?

Yes, if you plan to enter Muir Woods National Monument, there is an entrance fee. Riders should carry an annual pass or senior card and photo ID. The cycle loop itself does not require a separate permit.

What is the best time of year to cycle this loop?

The best time to cycle this loop is typically during the drier months, though specific seasonal considerations aren't detailed. To avoid heavy car traffic, which can be significant on these narrow, winding roads, it's recommended to ride when traffic is at a minimum, possibly before 10 am, especially on weekends or holidays.

What kind of scenery can I expect along the route?

You can anticipate breathtaking panoramic views. The loop showcases the coastal forests of Marin, expansive ocean vistas from Highway 1, and sweeping views of the Pacific, the San Francisco Bay, and the city skyline. You'll also pass by the iconic Muir Woods National Monument and can observe historical points related to World War II coastal defenses.

Where can I park to access the Muir Woods Cycle Loop?

While specific parking lots for the cycle loop aren't detailed, if you plan to visit Muir Woods National Monument, bike parking is available at Alice Eastwood Campground. For the loop itself, consider starting points that offer convenient parking, keeping in mind that popular areas can get crowded.

Are dogs allowed on the Muir Woods Cycle Loop?

The provided information does not specify dog regulations for the cycling loop itself. However, dogs are generally not allowed on trails within Muir Woods National Monument, except for service animals. It's best to check local regulations for the specific roads and paths you plan to use.

What are the notable landmarks or viewpoints along the route?

Key highlights include the Muir Woods National Monument, the Dias Ridge Entrance, and the Four Corners Panoramic Hwy/Muir Woods/Sequoia Valley Rd, which offers sweeping views. The route also features ocean vistas from Highway 1 and views of the San Francisco Bay and city skyline.

Does this route connect with other trails or cycling areas?

Yes, the Muir Woods Cycle Loop often overlaps with sections of Mt. Tamalpais rides and connects to the Golden Gate National Recreation Area. It also includes sections of the Marin Coastal Bike Route, Dipsea Race route, Sun Trail, Heather Cutoff, and ADT - California - T - Seg 9.

What is the terrain like on the Muir Woods Cycle Loop?

The terrain is varied, primarily consisting of paved roads. However, some connecting paths, especially when accessing the loop from certain directions, might include sections of gravel or unpaved roads. Expect significant elevation changes throughout the ride, with both challenging climbs and thrilling descents.

Are there any specific traffic considerations for this cycling route?

Yes, due to the popularity of the roads with Bay Area motorists heading to Stinson Beach, Muir Woods, and Mt. Tamalpais, avoiding car traffic can be tricky. The roads often lack significant shoulders and are narrow and winding. It is recommended to ride when car traffic is at a minimum, possibly before 10 am in certain sections, to enhance safety and enjoyment.

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