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Road cycling routes
United States
California
Sonoma County
Petaluma

Tomales Loop

Hard

4.7

(2372)

9,654

riders

Tomales Loop

03:48

81.3km

1,000m

Road cycling

This difficult 50.5-mile road cycling loop around Tomales Bay offers challenging climbs, diverse terrain, and stunning coastal views.

Last updated: February 26, 2026

Waypoints

A

Start point

Train Station

Get Directions

1

38.1 km

Nick's Cove and Boat Launch

Highlight • Beach

Small cove with a restaurant, long piers, and a public park with boat launch and nice shade.

Tip by

2

44.4 km

Tomales

Highlight • Settlement

Small roadside village along Coastal Hwy1, at the strategic intersections to Petaluma and Dillon Beach, with a great bakery, a general store, the oldest saloon in Marin, post office, two …

Tip by

B

81.3 km

End point

Train Station

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Way Types & Surfaces

Way Types

48.5 km

32.6 km

132 m

< 100 m

< 100 m

Surfaces

81.1 km

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (220 m)

Lowest point (10 m)

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Weather

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Friday 26 June

21°C

12°C

-- %

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Frequently Asked Questions

Where can I park to start the Tomales Loop ride?

As a road cycling loop, there isn't one designated trailhead parking lot. Cyclists often start from various points in Marin County, which is accessible from urban centers near the Golden Gate Bridge. You can find suitable parking in towns like Point Reyes Station or Tomales, depending on your preferred starting point for the loop.

Is the Tomales Loop suitable for beginner cyclists?

No, the Tomales Loop is generally rated as moderate to hard and requires good to very good fitness. It features significant climbs and continuous rolling terrain, with some sections like Wilson Hill Road having steep gradients of 10-12%. It's not recommended for beginners.

What is the best time of year to cycle the Tomales Loop?

The ride is best enjoyed in late winter or spring. During this time, the hills are gloriously green, and the area's natural beauty is at its peak, offering spectacular and constantly changing scenery.

Do I need any permits or pay entrance fees for the Tomales Loop?

No, you do not need any special permits or have to pay entrance fees to cycle the Tomales Loop. It primarily uses public roads in Marin County.

What kind of scenery can I expect along the route?

You can expect spectacular and constantly changing scenery. This includes sweeping views of Tomales Bay and the Point Reyes National Seashore, the Nicasio Reservoir, expansive open fields, grasslands, and pastoral ranch lands with grazing cattle. You'll also pass through sections with cypress canopies and quaint oyster farms along Highway 1.

Are there places to refuel or eat along the route?

Yes, the loop offers several popular stops for refueling. The town of Tomales has a bakery, deli/cafe, and general store. Point Reyes Station is home to the famous Bovine Bakery and a Cheese Factory, making it a great foodie stop.

How long does it typically take to complete the Tomales Loop?

The Tomales Loop, which is approximately 81 kilometers (50 miles) long with over 1000 meters (3280 feet) of elevation gain, typically takes around 3 hours and 47 minutes of active cycling time to complete. This duration can vary based on your fitness level and how often you stop.

What are the road conditions and traffic like on the Tomales Loop?

Most road surfaces are well-paved, though some segments may be unpaved. Roads like Chileno Valley Road offer minimal traffic, but Highway 1 along Tomales Bay can be heavily trafficked, especially on weekends, with some sections having no shoulder. Be prepared for varied conditions and traffic levels.

Is the Tomales Loop dog-friendly?

The Tomales Loop is a road cycling route that primarily uses public roads. While there are no specific restrictions against dogs on the roads themselves, it's generally not considered a 'dog-friendly trail' in the traditional sense for hiking. If you bring a dog, ensure it's safely secured and consider the traffic conditions.

Does the route intersect with other trails?

Yes, the route briefly intersects with sections of other trails. Notably, it crosses parts of the Pt Reyes Petaluma Bike Route and the Bay Area Ridge Trail - 01 - North Bay.

Are there any particularly challenging sections or roads to be aware of on the loop?

Yes, the loop is known for its challenging climbs. Wilson Hill Road includes a steep climb with gradients ranging from 10-12%. Additionally, Highway 1 along Tomales Bay presents constant rollers and can be heavily trafficked, especially on weekends, with some sections lacking a shoulder, requiring extra caution.

Nearby routes

Hard

5.0

405

Nicasio Reservoir loop from Marin Civic Center

03:50h

80.2km

980m

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