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Cal Park Tunnel & Pathway – Fish Gulch trail junction loop from Mount Tamalpais Watershed

Cal Park Tunnel & Pathway – Fish Gulch trail junction loop from Mount Tamalpais Watershed

Hard

3.5

(11)

riders

Cal Park Tunnel & Pathway – Fish Gulch trail junction loop from Mount Tamalpais Watershed

05:29

80.4km

1,180m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: July 17, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 62.2 km for 84 m

Waypoints

Start point

Parking

Get Directions

6.57 km

Gary Giacomini Open Space Preserve

Nature Reserve

12.4 km

Inkwells

Lake

12.5 km

Cross Marin Trail 🌲 Samuel P Taylor State Park Campground to Southern Park exit 🌲

Highlight (Segment) • Trail

Cross Marin Trail from Samuel P Taylor State Park Campground ( komoot.com/highlight/198026 ) to the Southern Park exit at Sir Francis Drake Blvd is a paved two lane bike trail …

Tip by

15.7 km

Redwood Grove Group Picnic Area

Highlight • Rest Area

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 …

Tip by

35.1 km

Nicasio

Highlight • Settlement

Handful of historic town buildings (some are a museum), church, ranch now a grocery store, around a large square sports field.

Tip by

61.8 km

Opening this bike tunnel through the renovated trail tunnel as part of the 2010 redeveloped rail connection from Larkspur Ferry to Santa Rosa closed a crucial gap in the bike commute to San Francisco.

Tip by

64.4 km

Tiburon-Larkspur Bike Path & Corte Madera Path intersection

Highlight • Cycleway

On the east side of Redwood Highway the north-south trail 17 to Tiburon intersects with the Corte Madera Path: the merged trail heads partially on the shoulder of the busy …

Tip by

71.1 km

Natalie Coffin Greene Park 🌳 Ross

Highlight • Rest Area

In 1967, the family of Natalie Coffin Greene gave 25 acres of Phoenix Lake land for a park in her memory. Locals know about the little park at the end …

Tip by

72.3 km

Phoenix Lake

Highlight • Lake

On Shaver Grade Road, you get to ride along the incredibly blue waters of Phoenix Lake.

Tip by

73.1 km

Fish Gulch trail junction

Highlight • Trail

From easiest to hardest climbs out of phoenix lake from this junction:
-Shaver Grade, easy grade, longer, shaded and pretty
-Eldridge Grade, medium, good length and can connect you to …

Tip by

80.4 km

End point

Parking

Way Types & Surfaces

Way Types

29.1 km

26.0 km

19.9 km

3.60 km

1.74 km

< 100 m

Surfaces

45.5 km

19.9 km

14.5 km

548 m

Elevation

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

Highest point (460 m)

Lowest point (0 m)

Weather

Today

Wednesday 22 July

22°C

14°C

41 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Cal Park Tunnel & Pathway – Fish Gulch trail junction loop from Mount Tamalpais Watershed

Cross Marin Trail 🌲 Samuel P Taylor State Park Campground to Southern Park exit 🌲

Redwood Grove Group Picnic Area

Nicasio