Castro Valley, California

Looking for the best mountain biking in Castro Valley? We've got you covered with the top trails, trips, hiking, backpacking, camping and more around Castro Valley. The detailed guides, photos, and reviews are all submitted by the Outbound community.

Top Mountain Biking Spots in and near Castro Valley

  • Moraga, California

    Bollinger Creek Loop Trail

    1.43 mi / 213 ft gain
    Las Trampas Regional Wilderness offers an extensive trail system for hikers, horseback riders and mountain bikers. The trail is open year round and dogs are allowed. The Las Trampas and Bollinger faults spread apart to reveal a wonderful wilderness area with ancient remnants of beaches. The entir...
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  • Oakland, California

    Hike Redwood Regional Park via the Dunn Loop

    5.0
    3.6 mi / 606 ft gain
    The Redwood Regional Dunn Loop is just outside of Oakland, and can be reached from anywhere in the Bay Area for a fun day or half-day trip. The trail is open year-round. In the spring, wildflowers are abundant. The trail has a great mix of sun and shade. Dogs are allowed, but must be kept on leash. 
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  • Sunol, California

    Hike the Pleasanton Ridge Trail

    4.3
    6.4 mi / 1443 ft gain
    Pleasanton Ridge Trail is a 6.4 mile loop. The loop is shared by dog walkers, trail runners, hikers, mountain bikers and horseback riders. From the ridge your viewpoints will include Mount Diablo and the San Francisco Bay.  This hike from the Foothills Staging Area is an excellent introduction ...
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  • Danville, California

    Summit Mount Diablo via Rock City Trail

    5.0
    7.8 mi / 2299 ft gain
    Although steep in sections, this trail is a wonderful workout and hikers are more than rewarded for their efforts. The Rock City Trail is a direct route to the summit of Mount Diablo, and the park is an ecological treasure dear to the hearts of Bay Area residents. The best views are on clear days...
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  • Danville, California

    Hike in Mount Diablo's Madrone Canyon

    2.8 mi / 550 ft gain
    This hike starts at the Rock City area of Mount Diablo State Park. Begin at the Madrone Canyon Trail, hiking southeast towards the Devils Slide trail. Along this section of the hike, the trail dips into a wooded canyon and follows the path of a small creek. To best experience the beauty of the cr...
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  • Walnut Creek, California

    Run the Mt. Diablo Foothill Loop

    5.0
    6.2 mi / 875 ft gain
    Continue by car down Castle Rock Road until it dead ends at the beginning of the trail. Parking is usually easy to find. If full, there is another overflow lot about 500 ft back the way you came in.You'll walk a good half mile down the trail before getting the main gate. As you're walking, you'll...
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  • Walnut Creek, California

    Castle Rock Trail

    5.0
    6.06 mi / 971 ft gain
    Located near Walnut Creek, the trail is easily accessible from anywhere in the Bay Area. The trail is kept open year-round, and happens to be part of the American Discovery Trail and the Coast to Crest trail. If you are not done hiking, connecting trails allow you to summit Mt. Diablo.  This tra...
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  • Walnut Creek, California

    Juniper to the Summit Loop Trail and Meridian Ridge

    6.56 mi / 2037 ft gain
    Juniper to the Summit Loop Trail and Meridian Ridge is a loop trail that is strenuous located near Diablo, California.
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  • Berkeley, California

    Seaview and Big Springs Loop

    4.5
    4.28 mi / 1007 ft gain
    The trail is dog and horse friendly, and many trail loops make Tilden Regional Park fun for families and those of any skill level. The Seaview and Big Springs Trail loop is typically used by avid hikers, trail runners, or mountain bikers. The first half of the trail is exposed to the sun and rock...
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  • San Francisco, California

    McLaren Park: Philosopher's Way Loop

    5.0
    2.25 mi / 315 ft gain
    Beyond McLaren's family friendly playgrounds and picnic areas, there are miles of trail to explore. The Philosopher's trail is a well-marked loop (notice the stone markings along the trail with arrows etched into them). There are several parking lots available where you can jump onto the loop. No...
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  • San Francisco, California

    Presidio Bay Area Ridge Trail

    5.0
    2.73 mi / 203 ft gain
    Presidio Bay Area Ridge Trail is a point-to-point trail where you may see wildflowers located near San Francisco, California.
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  • Palo Alto, California

    Hike the Arastradero Preserve Loop

    3.0
    4.5 mi / 600 ft gain
    Getting There: From Hwy 280, take the Page Mill Road exit and head West on Page Mill Road, away from Downtown Palo Alto (if you're taking 101, exit on Oregon Expressway). Then turn right on Arastradero Road. There will be a small sign indicating the dirt parking lot on the eastern side of the str...
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  • Redwood City, California

    Mountain Bike at Purisima Creek

    This beautiful mountain bike ride can be started at the Purisima Creek Road Trailhead or on Skyline Boulevard. There are many trails in the Purisisma Creek Redwoods, but Whittemore Gulch is by far the most beautiful and fun single track to descend on. If you are starting from Skyline Boulevard, i...
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  • Tiburon, California

    Angel Island Perimeter Loop

    5.98 mi / 794 ft gain
    Angel Island Perimeter Loop is a loop trail around the circumference of the island in the San Francisco Bay. The island is located near Tiburon, California with views  of downtown San Francisco, Alcatraz, the Golden Gate Bridge, Oakland, Sausalito, and TIburon as you traverse around the island. ...
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  • Redwood City, California

    Hike or Bike the Old Growth Redwood Loop at El Corte de Madera

    4.4
    8.8 mi / 1900 ft gain
    This hike starts at the middle parking lot of the El Corte de Madera Open Space Preserve. The middle lot is located roughly a mile south on Skyline Boulevard from the Skeggs Point Vista. From the parking lot, take the Methuselah Trail for 0.3 miles until you reach the Timberview Trail. Take this ...
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  • Redwood City, California

    Hike the Methuselah and El Corte De Madera Creek Loop

    6.2 mi / 1800 ft gain
    This loop hike will provide people with the opportunity to experience the tranquility of the lower canyons of the preserve, which tend to be more isolated than the heavier-trafficked trails that are closer to the main highway. Be warned that this hike is fairly strenuous because of the large amou...
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