4.8
(5)
49
riders
9
rides
Gravel biking in Windy Hill Open Space Preserve offers diverse terrain across over 1,300 acres, climbing from Portola Valley to the Skyline Ridge. The preserve features open grassland ridges, lush oak woodlands, and forests of redwood, fir, and oak. Riders can expect varied surfaces and elevation gains up to 3,000 feet, making it suitable for different fitness levels. The distinctive, breezy, grass-covered hilltop is a prominent feature of the landscape.
Last updated: June 29, 2026
11
riders
48.0km
03:34
1,170m
1,170m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
48.2km
03:59
1,300m
1,300m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
13.9km
01:13
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
5
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
6.49km
00:32
140m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Windy Hill Open Space Preserve
Borel Hill is my favorite place to watch spring flowers. The western slope near ancient oaks (5-10min west of Borel Hill) are covered with orange California Poppies and purple flowers starting in April. Borel Hill itself peaks around mid May and has a wide variety of flowers. The show lasts only a few weeks until end of May. The peak time and flower intensity varies from year to year, so come several times between April and May. There is small summit NW of Borel Hill and a narrow dirt trail leads you to a rock within 2 min. The rock is big enough for 2-3 to sit on. On a sunny day, the rock is nice warm even if the air is cold. Good views on the ocean and the Bay.
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Didnβt OLR used to turn into Dirt before reaching Skyline? Is it all pavement now?? Scott
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Here, the Steve's Creek Nature Trail and the Canyon Trail intersect. A lovely patch of grass surrounds the junction, making it an ideal spot for a break.
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Black Mountain, situated on Monte Bello Ridge, is a popular destination for hikers and mountain bikers. With an elevation of 2,812 feet, it's easy to understand why. From the summit, the views of the Santa Cruz Mountains and Silicon Valley are breathtaking.
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Boronda Lake features a couple scenic picnic areas with piers out over the water. A small arched bridge leads out to Sunfish Island from a trail on the side of the lake opposite the road. This is great place from which to enjoy beautiful Foothills Nature Preserve.
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Old La Honda Rd downhill video: https://youtu.be/icnBpBZQ8gE?si=xYovaH-Nr8llwLEM
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A small hike/bike-in campground with a vault toilet and (non-portable) water. You can oversee the lights of Bay Area at night and wake up above the cloud in the morning. You have to get a permit ($2) and the park rangers come and check the permit in the evening.
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Windy Hill Open Space Preserve offers a good selection of gravel bike trails. There are 9 routes documented on komoot, ranging from moderate to difficult, providing diverse options for your ride.
You can expect diverse terrain, transitioning through open grassland ridges, lush oak woodlands, and forests of redwood, fir, and oak. Some trails are mostly paved, while others offer challenging climbs and varied surfaces. The preserve is known for its distinctive, breezy, grass-covered hilltop.
Yes, Windy Hill Open Space Preserve caters to various fitness and skill levels. The trails range from moderate to difficult, with elevation gains up to 3,000 feet, ensuring options for those seeking a good workout as well as less strenuous rides. For example, the Old La Honda Road β Portola Road loop from Portola Valley is a moderate option, while the Old La Honda Road β West Old La Honda Road loop from Portola Valley is considered difficult.
Bicycles are restricted to designated trails only, with a 15 mph speed limit (5 mph when passing). It's important to note that e-bikes are generally not allowed on most Midpeninsula Regional Open Space District trails. Additionally, some specific trails like Betsy Crowder, Razorback, Lost, and Hamms Gulch are closed to bicycles year-round.
The preserve offers breathtaking panoramic views of the San Francisco Bay, Stanford University, Mount Tamalpais, Mount Diablo, and even the Pacific Ocean on clear days, especially from the Windy Hill Summit and upper portions. You can also visit Windy Hill Open Space Preserve Scenic View. Sausal Pond is another significant attraction, home to various wildlife and offering scenic picnic areas.
While the preserve offers multiuse trails, many gravel routes feature significant elevation gains and are rated moderate to difficult. For family-friendly options, it's best to check individual route descriptions for flatter sections or shorter loops. The preserve's general trail system is multiuse, but specific gravel routes might be challenging for younger riders.
Spring is particularly beautiful, as the open grassy meadows are adorned with wildflowers. Clear days offer the best panoramic views of the Bay Area and Pacific Ocean. The preserve's namesake 'Windy Hill' suggests it can be breezy, so checking weather conditions is always advisable.
Yes, certain trails are closed to bicycles year-round. These include Betsy Crowder, Razorback, Lost, and Hamms Gulch trails. Always ensure you are on designated multiuse trails open to bikes.
The preserve has various access points, including trailheads in Portola Valley. Parking is typically available at these designated trailheads. It's advisable to check specific trailhead information for the route you plan to ride to confirm parking availability and any potential fees.
The komoot community frequently praises the diverse terrain, from open grasslands to lush woodlands, and the stunning panoramic views of the San Francisco Bay and beyond. Riders appreciate the variety of routes catering to different fitness levels and the sense of isolation despite the preserve's proximity to urban areas.
While popular, the preserve spans over 1,300 acres, offering many miles of trails. To find less crowded routes, consider exploring some of the less frequently mentioned trails or visiting during off-peak hours, such as early mornings on weekdays. The White Oak Trail β Bella Vista Trail loop from Los Trancos Open Space Preserve might offer a different experience.
The preserve is located near Portola Valley, which offers local amenities. You can find cafes and other eateries in Portola Valley for refreshments before or after your ride.


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