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Routes
Hiking trails & Routes
United States
California
Marin County

Spanish Loop

Easy

3.1

(15)

99

hikers

Spanish Loop

01:57

5.79km

290m

Hiking

An easy 3.6-mile hike in Old Saint Hilary's Open Space Preserve, offering views from Picnic Rock and a pleasant outdoor experience.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Start point

Parking

Get Directions

1.93 km

Viewpoint

Viewpoint

2

3.62 km

Picnic Rock

Highlight • Viewpoint

3

5.39 km

Well signposted and close by you can park next to the beautiful access road along the side (just opposite the university entrance).

Translated by Google •

Tip by

B

5.79 km

End point

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Way Types & Surfaces

Way Types

2.92 km

2.01 km

604 m

265 m

Surfaces

1.89 km

1.82 km

1.12 km

593 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 (170 m)

Lowest point (40 m)

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Weather

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Friday 15 May

21°C

11°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the trail?

Parking for the Spanish Loop is typically available near the trailheads within Old Saint Hilary's Open Space Preserve. Specific parking areas are usually marked on preserve maps or signage. It's always a good idea to arrive early, especially on weekends, as parking can be limited.

Are dogs allowed on the Spanish Loop?

Yes, dogs are generally permitted on the Spanish Loop trail. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all visitors. Please remember to clean up after your pet.

What is the best time of year to hike this route?

The Spanish Loop can be enjoyed year-round, but the best times are typically spring and fall when temperatures are mild and the scenery is vibrant. Spring brings wildflowers, while fall offers pleasant weather. Summer can be warm, so an early start is recommended, and winter can be beautiful but may have muddy sections after rain.

Do I need a permit or pay an entrance fee for the preserve?

No, there are no entrance fees or permits required to access the Spanish Loop trail or Old Saint Hilary's Open Space Preserve. It is open to the public for recreational use.

What kind of terrain can I expect on the trail?

The Spanish Loop offers varied terrain, including sections of the San Francisco Bay Trail, Heathcliff Fire Road, and Lyford Fire Road. You'll encounter a mix of paved, gravel, and dirt paths, with some moderate ascents and descents as it winds through the preserve.

What can I see along the route?

Along the Spanish Loop, you'll encounter several points of interest. Keep an eye out for Picnic Rock, which offers great views, and the Entrance to Tiburon Uplands Nature Preserve, where you can appreciate the forest environment.

Does the trail connect with other paths?

Yes, the Spanish Loop is part of a network of trails. It includes significant portions of the San Francisco Bay Trail, Heathcliff Fire Road, and Lyford Fire Road, offering opportunities to extend your hike or explore different sections of the preserve.

Is the Spanish Loop suitable for families with children?

Given its 'easy' difficulty rating and manageable distance, the Spanish Loop is generally suitable for families. The varied terrain and points of interest like Picnic Rock can make it an engaging outing for children. Always consider your family's fitness level before heading out.

What are the regulations for Old Saint Hilary's Open Space Preserve?

As part of Old Saint Hilary's Open Space Preserve, visitors should adhere to standard preserve regulations. These typically include staying on marked trails, packing out all trash, keeping dogs leashed, and respecting wildlife. Check local signage for any specific rules or seasonal closures.

What should I bring for a hike on this trail?

For the Spanish Loop, it's recommended to bring plenty of water, especially on warmer days. Comfortable hiking shoes are a must, and layers of clothing are advisable due to changing weather conditions. Don't forget sun protection like a hat and sunscreen, and a camera for the scenic views.

Are there any viewpoints along the Spanish Loop?

Yes, the trail features Picnic Rock, which is noted as a viewpoint. From here, you can often enjoy expansive vistas of the surrounding area, making it a great spot for a break and photos.

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