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Running Trails
United States
California
Santa Clara County

El Sereno Open Space Preserve

The best running trails in El Sereno Open Space Preserve

4.4

(11)

1,699

runners

92

runs

Jogging in El Sereno Open Space Preserve offers diverse landscapes within the Santa Cruz Mountains, centered around the 2,500-foot Mount El Sereno. The terrain ranges from foothills to steep slopes, characterized by exposed chaparral communities, meadows at higher elevations, and some shaded areas near creeks. Many trails are wide fire roads, providing varied terrain from moderate climbs to challenging ascents, suitable for different fitness levels. Panoramic views of Silicon Valley, Lexington Reservoir, and Sierra Azul are accessible from various points.

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Last updated: May 10, 2026

1

runners

#1.

Bay Area Ridge Trail: El Sereno Loop

11.4km

01:34

400m

400m

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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5.0

(1)

63

runners

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

20

runners

15.2km

01:54

420m

420m

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

10

runners

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Popular around El Sereno Open Space Preserve

Bay Area Ridge Trail β€” Hiking the backbone of The Bay

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Bay Area Ridge Trail β€” Hiking the backbone of The Bay

Hiking Collection by

Andrus

Tips from the Community

Christopher
January 4, 2024, Monte Sereno Overlook

The overlook here is a very nice place to stop for a break or take a long picnic. In a small grass clearing you can see the entirety of San Jose and even across to the mountains on the other side of the valley.

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There is a nice overlook and picnic spot here with plenty of shade. The trail up to this point is gradual in nature, and depending on fitness level, never really gets challenging. Great for an uphill run where you want to keep a steady pace.

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El Sereno Preserve is named after the Mount El Sereno sitting at an elevation of 2,500 feet. This area gives rewarding views of the cities of Saratoga and the western area of Los Gatos. Spanning 1,614 acres, the preserve features seven miles of wide, gradual trails open for various activities such as hiking, biking, dog walking, and designated horseback riding.

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The summit of Saint Josephs Hill offers views of Los Gatos Creek valley into Silicon Valley and of the Lexington Reservoir. A couple benches and a fence mark the summit of the hill and serve as a good spot for a break while you take in the view.

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Lexington Reservoir County Park is 950 acres, and home to the Lexington Reservoir. It's a short drive from the urban area of the Town of Los Gatos. The reservoir and the park are open year round from 8:00 a.m. until sunset, and accessible from Highway 17.

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Frequently Asked Questions

How many running routes are available in El Sereno Open Space Preserve?

El Sereno Open Space Preserve offers a wide selection of nearly 90 running routes. These range from easy paths to more challenging ascents, catering to various fitness levels.

Are there easy running routes for beginners in El Sereno Open Space Preserve?

Yes, there are 8 easy running routes perfect for beginners or those looking for a less strenuous jog. Many trails are wide fire roads with gradual slopes, making them accessible. For example, the Manzanita and Jones Trail Loop is a moderate option that offers a pleasant experience.

What kind of terrain can I expect on the running trails?

The terrain in El Sereno Open Space Preserve is diverse, rising from foothills to steep slopes. You'll primarily encounter exposed chaparral communities, with meadows at higher elevations and some shaded areas near creeks. Many trails are wide fire roads, offering varied surfaces from moderate climbs to challenging ascents. You can expect fragrant smells of California bay laurel, chamise, and coyote bush along the way.

Are dogs allowed on the jogging trails?

Yes, dogs are welcome on all trails within El Sereno Open Space Preserve, provided they are kept on a leash. This makes it a great spot for runners who enjoy bringing their canine companions along.

Which routes offer the best panoramic views?

El Sereno Open Space Preserve is renowned for its spectacular panoramic views. From various points, including the Montevina Ridge and Aquinas Trails, you can enjoy expansive vistas of Silicon Valley, Lexington Reservoir, Sierra Azul, and even the distant Monterey peninsula. The Vista Point (Overlook Trail) is a particularly popular spot for breathtaking scenery.

Are there challenging running routes for experienced runners?

Absolutely. For experienced runners seeking a strenuous workout, El Sereno Open Space Preserve offers 22 difficult routes. The Aquinas Trail, for instance, provides a significant elevation gain, climbing from just over 1,000 feet to nearly 2,600 feet over 3.5 miles. The Bay Area Ridge Trail: El Sereno Loop is another difficult option with expansive views.

What is the best time of year to go jogging in El Sereno Open Space Preserve?

While the trails are mostly exposed and can be hot in the summer, spring and fall generally offer the most pleasant temperatures for jogging. Early mornings or late afternoons are also recommended during warmer months to avoid the midday heat. The preserve provides excellent opportunities for scenic and invigorating runs year-round.

Are there loop running routes available?

Yes, many of the running routes in El Sereno Open Space Preserve are loops, offering a varied experience without retracing your steps. Popular loop options include the Los Gatos Creek and Jones Trail Loop and the Overlook Trail and Saratoga-Los Gatos Road Loop.

What are some notable natural features or landmarks to look out for?

Beyond the stunning views, joggers can appreciate the diverse chaparral communities and meadows. The preserve is named after the 2,500-foot Mount El Sereno, which forms a prominent ridge. You can also explore the Aquinas Trail, known for its challenging ascent and rewarding scenery.

What do other runners say about the trails in El Sereno Open Space Preserve?

The running routes in El Sereno Open Space Preserve are highly rated by the komoot community, with an average score of 4.1 stars from over 10 reviews. Reviewers often praise the diverse terrain, the rewarding panoramic views, and the well-maintained fire roads that make for excellent running surfaces.

Is there public transport access to El Sereno Open Space Preserve?

The preserve is primarily accessed by car, and direct public transport options to the trailheads are limited. It's advisable to check local transit schedules for any routes that might connect to the vicinity, but a personal vehicle is generally recommended for convenience.

Where can I park when visiting El Sereno Open Space Preserve for a run?

Parking is available at designated trailheads around the preserve. It's recommended to check specific trailhead information for the route you plan to run to confirm parking availability and any potential restrictions.

What should I consider bringing for a run, especially during warmer months?

Given that many trails are exposed, especially during warmer months, it's crucial to bring plenty of water to stay hydrated. Sun protection, such as a hat, sunglasses, and sunscreen, is also highly recommended. Appropriate running shoes for varied terrain, including fire roads and some steeper sections, will ensure a comfortable experience.

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