4.6
(26)
486
riders
4
rides
No traffic touring cycling routes in Cull Canyon Regional Recreation Area traverse a diverse landscape characterized by rolling hills, densely wooded canyons, and oak-carpeted slopes. The area features quiet roads and trails that transition from residential areas to more rural settings, offering elevation changes suitable for touring cyclists. Reservoir views and connections to a broader regional trail network are also present, providing varied terrain for exploration.
Last updated: May 14, 2026
4.0
(1)
12
riders
34.2km
02:17
540m
540m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
riders
15.1km
01:35
330m
330m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(4)
30
riders
30.0km
02:40
600m
600m
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
12
riders
15.5km
01:50
650m
650m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
20.9km
01:18
30m
30m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Cull Canyon Regional Recreation Area
This trail is a popular mountain biking, hiking and running trail. It goes through rolling hills and, at times, gives you great views of the lakes in the area.
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On a clear day you can see all the way across the bay, past the San Mateo-Hayward Bridge.
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The Bay Trail is paved and takes you right up along the water's edge. On the inland side of the causeway, you can see the tidal marshlands that comprise Heron Bay.
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This 30-acre waterside park has something for everyone! You'll find a playground, covered picnic area, a 1 mile workout trail, and great views over the water.
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still closed, for more information and a detour see https://www.reddit.com/r/BAbike/comments/1b0mc5w/redwood_rd_closure_not_recommended_on_a_road_bike/
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There are 5 dedicated no-traffic touring cycling routes in Cull Canyon Regional Recreation Area, offering a range of distances and difficulties for cyclists.
The terrain in Cull Canyon Regional Recreation Area and its surroundings is characterized by rolling hills and significant elevation changes, providing a good workout for touring cyclists. You'll encounter diverse landscapes, from densely wooded canyons to oak-carpeted hills, often feeling quite remote despite proximity to urban areas.
Yes, while many routes feature challenging hills, there is at least one easier route suitable for a more relaxed ride. For example, the area offers connections to paths that are less strenuous, though specific family-friendly routes might require careful planning to avoid significant climbs. The Brandon Trail β Brandon Trail loop from Anthony Chabot Regional Park is a moderate option that might be suitable for families with some cycling experience.
Cyclists can enjoy scenic views of oak-carpeted hills, densely wooded canyons, and reservoir vistas. The Chabot-to-Garin Regional Trail, for instance, runs along the east side of the Cull Canyon reservoir, offering picturesque water views. Nearby Anthony Chabot Regional Park, accessible via connected trails, also features redwood groves and additional reservoir views.
The area is highly rated by the komoot community, with an average score of 4.6 out of 5 stars from 20 ratings. Reviewers often praise the quiet, low-traffic nature of the routes, the challenging yet rewarding hilly terrain, and the beautiful natural scenery that makes rides feel remote and immersive.
Absolutely. The region is known for its challenging routes with substantial elevation gains. Options like the Redwood Road loop from Castro Valley, the Palomares Road β Palomares Road loop from Five Canyons Open Space, and the Lake Chabot loop are all rated as difficult, offering a rigorous workout and rewarding views.
Yes, several routes are designed as loops, allowing you to start and end at the same point. Examples include the Redwood Road loop from Castro Valley, the Lake Chabot loop, and the High Ridge viewpoint loop from Garin Regional Park.
Cull Canyon offers amenities like a swim lagoon with sandy beaches for a post-ride cool-down, and ample picnic areas. Bay Trees Community Park, part of the Cull Creek Trails, provides restrooms, picnic areas, and shady spots. A short distance away, Lake Chabot Marina offers additional amenities including a cafe and picnic areas, making it a convenient stop.
Cull Canyon serves as a gateway to an extensive network of regional trails. The Chabot-to-Garin Regional Trail, a segment of the larger Bay Area Ridge Trail, runs through the park and leads north to Anthony Chabot Regional Park, offering further cycling opportunities. Other nearby routes include the Iron Horse Regional Trail and paths towards Dublin, Palomares Road, and Niles Canyon Road.
While specific public transport routes directly into the recreation area for cyclists might be limited, the area is located in Castro Valley, California, which has public transport options. It's advisable to check local AC Transit schedules for bus routes that might connect to the park's vicinity, or consider combining cycling with BART (Bay Area Rapid Transit) to nearby stations and cycling the rest of the way.
The East Bay climate generally offers pleasant cycling conditions for much of the year. Spring and fall typically provide mild temperatures and clear skies, ideal for touring. Summers can be warm, so early morning rides are recommended. Winters are generally mild but can bring rain, so checking the weather forecast is always a good idea.


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