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Marin County

Horse Hill Open Space Preserve

Routes
Hikes
Marin County

Horse Hill Open Space Preserve

The best family-friendly hikes and walks in Horse Hill Open Space Preserve

4.8

(613)

11,045

hikers

219

hikes

Family friendly hiking trails in Horse Hill Open Space Preserve traverse diverse landscapes, featuring open spaces, rolling hills, and areas shaded by mature oak trees. The preserve offers a mix of single-track paths and wider fire roads, providing options for various fitness levels. Hikers can experience seasonal springs in winter and blooming wildflowers in spring, alongside panoramic views of the San Francisco Skyline, Richardson Bay, and Mount Tamalpais. The trails are generally not too steep, making them suitable for families and offering connections to the Alto Bowl Open Space Preserve for extended exploration.

Best family friendly hiking trails in Horse Hill Open Space Preserve

  • The most popular family friendly hiking route is Dollar Fire Road, a 1.1 miles (1.8 km) trail that takes about 30 minutes to complete. This easy path offers gentle gradients through varied terrain.
  • Another top favourite among local hikers is Hauke Park and Bayfront Park, an easy 1.4 miles (2.2 km) path. This route provides flat, accessible walking along the bayfront, suitable for all ages.
  • Local hikers also love the Bothin Marsh Preserve โ€“ Bothin Marsh Preserve loop from Mill Valley, a 3.1 miles (5.0 km) trail leading through marshland and open spaces, often completed in about 1 hour 15 minutes.
  • Hiking in Horse Hill Open Space Preserve is defined by rolling hills, open grasslands, and shaded oak groves. The network offers options for different ability levels, from easy walks to moderate excursions.
  • The routes in Horse Hill Open Space Preserve are highly rated by the komoot community with an average score of 4.8 stars from over 600 reviews. More than 11,000 hikers have used komoot to explore Horse Hill Open Space Preserve's varied terrain.

Last updated: July 7, 2026

#1.

Dollar Fire Road

1.80km

00:33

100m

0m

The Dollar Fire Road offers a refreshing, easy hike on a wide dirt and gravel path within the Horse Hill Preserve in Mill Valley. This multi-use trail provides a consistent, gentle grade, making it a welcoming environment for hikers, bikers, and equestrians alike. You'll experience natural surroundings and a peaceful atmosphere, perfect for a quick escape or a leisurely walk.

For planning your visit, the Dollar Fire Road is easily accessible and permits dogs, so you can bring your furry friend along. As a there-and-back route, it's simple to navigate, and its short 1.1 miles (1.8 km) distance with 327 feet (100 metres) of elevation gain means you can complete it in about 33 minutes. It's a great option for a spontaneous outing, with no permits or fees mentioned.

What makes the Dollar Fire Road notable is its role as a multi-use fire road, providing a valuable recreational resource for the community. It's a testament to accessible outdoor activity, offering a straightforward path for exercise or a brief immersion in nature without the commitment of a longer, more challenging trek. Its easy difficulty makes it suitable for nearly everyone.

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Easy

5

hikers

Enjoy an easy 1.4-mile (2.2 km) hike through Hauke Park and Bayfront Park, featuring scenic bay views and birdwatching opportunities.

Easy
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6

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

6

hikers

The Mill Valley - Sausalito Path offers a delightful journey through Marin County's wetlands and along Richardson Bay, providing expansive views of Mount Tamalpais and even glimpses of San Francisco. This multi-use route, following a former railway line, is predominantly flat and wide, making it an easy and enjoyable experience for all ages and abilities. You'll wind through the ecological richness of Bothin Marsh Preserve, a haven for migratory birds, and pass by charming houseboat communities.

To make the most of your visit, plan to arrive early, especially on weekends, as this is Marin County's most-used route and parking can fill up quickly. The trail is accessible year-round, with pleasant conditions for a moderate 10.3-mile (16.6 km) hike that takes approximately 4 hours and 13 minutes to complete, with a gentle 160 feet (49 metres) of elevation gain. Public transport is also a viable option to reach the trailheads in Mill Valley or Sausalito.

Beyond its scenic beauty, this path holds historical significance as a former railway line, now serving as a crucial link between Mill Valley and Sausalito. It's a segment of the larger San Francisco Bay Trail and is renowned for its accessibility, welcoming everyone from cyclists to families with strollers. The wetlands along the route are a prime spot for birdwatching, attracting pelicans and various raptors, adding a rich wildlife element to your outing.

Moderate
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Tips from the Community

Sue
October 26, 2023, Bothin Marsh Preserve

This tidal sanctuary runs along the Mill Valley-Sausalito Pathway and the Charles F. McGlashan Pathway. More than 400 species of migratory birds rest here after their long flights, and if you pass through in the early morning or late evening, the sunrises and sunsets reflect beautifully on the surface of this 106-acre marsh.

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Traveler
August 19, 2022, Lomita bikeway

Quiet residential street with bike lane connecting the bike trail that ends at the Camino Alto tunnel with the bike trail over Horse Hill parallel to Hwy 101

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Where Coyote Creek drains into Richardson Bay (an arm of San Francisco Bay) is also the intersection of the trail along the creek and the Mill Valley - Sausalito Path that runs along the bay.

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Easiest connection from SF to Marin

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To circumvent the still closed Alto tunnel hikers and bikers can either climb up the steep connection here to Camino Alto grade, or turn east a few yards earlier at the school to make their way over to Horse Hill trail, along noisy 101 Highway

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South of the shopping center the trail crossed the highway and enters a pleasant network of trails through the Bayside parks and Marsh wetlands

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Small waterfront park, dogs permitted

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Traveler
December 5, 2019, Seaplane port

Offering commercial short distance seaplane taxi services and sightseeing tours

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Frequently Asked Questions

How many family-friendly hiking trails are available in Horse Hill Open Space Preserve?

Horse Hill Open Space Preserve offers a wide variety of hiking options, with over 200 routes in total. For families, there are more than 80 easy trails and over 100 moderate trails to explore, ensuring there's something suitable for all ages and energy levels.

What makes Horse Hill Open Space Preserve a good choice for families with children?

The preserve is ideal for families due to its diverse and generally not-too-steep terrain, offering both single-track paths and wider fire roads. Kids will especially enjoy spotting the resident herd of horses grazing on the hill, and the chance to see various wildlife like raptors, bunnies, and deer. The panoramic views of the San Francisco Skyline and Mount Tamalpais also provide engaging sights.

Are there any easy, short loop trails suitable for young children or strollers?

Yes, there are several easy routes that are great for families. While not all trails are stroller-friendly due to varied terrain, many wider fire roads offer smoother surfaces. For a relatively short and easy walk, consider the Dollar Fire Road, which is just under 2 kilometers. Another option is the Hauke Park and Bayfront Park route, which is also easy and around 2.2 kilometers.

What kind of wildlife can we expect to see while hiking with kids?

Beyond the beloved herd of horses, Horse Hill Open Space Preserve is home to a variety of wildlife that children will love to spot. Keep an eye out for raptors such as American kestrels, red-tailed hawks, and northern harriers soaring overhead. You might also encounter bunnies, turkeys, and deer. Coyotes are present but are typically more elusive.

When is the best time of year to visit Horse Hill Open Space Preserve with family?

Spring is a particularly beautiful time to visit, as the preserve comes alive with blooming wildflowers like lupine, blue-eyed grass, and Douglas iris. During winter months, seasonal springs emerge on the south slope, adding to the natural charm. The preserve offers wonderful terrain and views year-round, but spring provides an extra splash of color.

Are there any longer, moderate family-friendly hikes for older children or more active families?

Absolutely! For families looking for a longer adventure, the Hiking loop from Mill Valley is an easy 5.8-kilometer route that offers a good distance without excessive difficulty. If you're up for a moderate challenge, the Sausalito Houseboats โ€“ Sausalito โ€” Mill Valley Path loop from Alta is a longer 14.2-kilometer option that provides extended exploration opportunities.

What are the parking options like at Horse Hill Open Space Preserve trailheads?

Parking is generally available at various access points to the preserve. Specific parking details can vary by trailhead, so it's always a good idea to check local signage upon arrival. Many trailheads offer convenient access for families.

What do other hikers enjoy most about hiking in Horse Hill Open Space Preserve?

The area is highly rated by the komoot community, with an average score of 4.8 stars from over 600 ratings. Reviewers often praise the breathtaking panoramic views of the San Francisco Skyline, Richardson Bay, and Mount Tamalpais, as well as the unique experience of seeing the grazing horses. The varied terrain and well-maintained paths also receive frequent positive mentions.

Are there any specific trails that offer the best views for families?

Many trails within Horse Hill Open Space Preserve offer fantastic views. As you ascend some of the rolling hills, you'll find numerous vantage points providing expansive vistas of the San Francisco Skyline, Richardson Bay, the Tiburon Peninsula, and Mount Tamalpais. Even on easier paths, you'll often catch glimpses of these iconic landmarks.

Can we connect to other open space preserves from Horse Hill?

Yes, Horse Hill Open Space Preserve connects to the Alto Bowl Open Space Preserve, offering extended exploration opportunities for families who wish to venture further and experience more of the region's natural beauty.

Are there any historical points of interest in or near the preserve?

The area holds historical significance, with archaeological evidence of Native American Coast Miwok camps in the vicinity. While specific marked historical sites might not be prominent on every trail, knowing this history adds another layer of appreciation to your family's visit to the preserve.

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