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Routes
Road cycling routes
United States
California
Alameda County
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Cull Canyon Bike Route

Moderate

3.0

(24)

52

riders

Cull Canyon Bike Route

01:26

30.0km

340m

Road cycling

Imagine yourself road cycling through varied landscapes on the Cull Canyon Bike Route. This moderate 18.7-mile (30.0 km) ride takes you from suburban fringes into quiet, oak-carpeted hills, offering a peaceful escape. You will gain about 1120 feet (341 metres) in elevation, with the journey typically completed in around 1…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

Get Directions

1

189 m

Don Castro Regional Recreation Area

Highlight • Lake

Don Castro Regional Park is a 101-acre park between Hayward and Castro Valley. It offers swimming in the lagoon, fishing, picnicking, as well as five miles of trails.

Tip by

2

4.29 km

Bay Trees Community Park

Highlight • Rest Area

Bay Trees Community Park, part of the Cull Creek Trails, has restrooms, a picnic area, and water fountains, making it a great spot for a break. There are big old …

Tip by

3

6.51 km

Cull Canyon Road

Highlight (Segment) • Climb

Cull Canyon Road is a road with a lower speed limit and usually less congested, but beware it is still a road. About five and a half miles to the …

Tip by

B

30.0 km

End point

Parking

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Way Types & Surfaces

Way Types

21.1 km

6.07 km

2.69 km

175 m

Surfaces

27.2 km

2.64 km

232 m

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Elevation

Elevation

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Highest point (250 m)

Lowest point (50 m)

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Weather

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Today

Friday 22 May

29°C

9°C

0 %

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Max wind speed: 25.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Cull Canyon Bike Route suitable for beginners?

The Cull Canyon Bike Route is generally considered a moderate road ride. While it features a steady climb on Cull Canyon Road, the overall average grade is under 2% for much of it. Some sections can be steeper, making it best suited for cyclists with good fitness rather than absolute beginners. However, its well-maintained, paved surfaces make it accessible for those looking for a challenge.

What is the terrain like on this route?

The route primarily features well-paved surfaces, especially along Cull Canyon Road, which boasts first-rate pavement and a consistent paved shoulder of two to three feet wide. You'll experience a mix of wide suburban avenues transitioning to secluded country roads. While some segments in the broader regional recreation area can be unpaved, the focus of this bike route is on smooth road cycling.

Is this a loop trail or an out-and-back route?

This route is primarily designed as an out-and-back ride. However, it can be combined with other roads like Palomares Road, Crow Canyon Road, and Niles Canyon Road to create longer, more diverse loop options for experienced cyclists.

Where can I park to access this route?

Specific parking details for the Cull Canyon Bike Route trailhead are not provided, but access points are typically found near the start of the route in Hayward, often close to the transition from suburban areas to the more secluded country roads. Look for public parking areas or street parking in the vicinity of the Bay Trees Community Park or near the entrance to the Cull Canyon Regional Recreation Area.

Is the route dog-friendly?

While the Cull Canyon Regional Recreation Area generally has policies regarding dogs, this specific bike route is designed for road cycling. Dogs are typically not permitted to accompany cyclists on paved bike routes for safety reasons. Always check specific regulations for the regional recreation area if you plan to visit with a dog off the bike route.

What is the best time of year to cycle this route?

The route can be enjoyed year-round, but spring and fall offer the most pleasant cycling conditions with mild temperatures and lush scenery. Summers can be warm, while winters are generally mild but may bring occasional rain.

Are there any permits or entrance fees required for the Cull Canyon Regional Recreation Area?

While the Cull Canyon Bike Route passes through or near the Cull Canyon Regional Recreation Area, specific permits or entrance fees for simply cycling the road route are generally not required. However, if you plan to use facilities within the regional recreation area, such as the swim lagoon or specific trails, there might be fees or regulations. It's always best to check the official East Bay Regional Park District website for the most current information regarding permits and fees for the Don Castro Regional Recreation Area and Cull Canyon.

What kind of scenery and notable features can I expect along the way?

You'll experience a transition from wide suburban avenues to secluded country roads, offering views of green, oak-carpeted hills. The route explores the hilly lands between San Ramon Valley and the East Bay coastal towns. A unique feature near the end of Cull Canyon Road is The Sequoians, a nudist resort. You'll also pass by the Don Castro Regional Recreation Area.

Does this route connect with other cycling paths?

Yes, the route connects with other roads like Crow Canyon Road, Palomares Road, and Niles Canyon Road, allowing for diverse and longer rides. It also intersects with sections of official trails such as the Bay Area Ridge Trail - 02 - East Bay, Whispering Creek Trail, Chabot to Garin Trail, and Twilight Trail.

How busy is the Cull Canyon Bike Route?

Once you get past the initial suburban stretch, Cull Canyon Road itself is noted for having little traffic, making for a quieter and more enjoyable cycling experience. This makes it a good option if you're looking for less crowded cycling routes.

What's a good strategy for cycling Cull Canyon Road?

For a focused and pleasant ride, consider the Cull Canyon Bike Route as an out-and-back. The road itself is known for its excellent pavement and consistent shoulder, offering a smooth experience. The main climb is steady but manageable for those with good fitness. Starting early can help you enjoy the secluded country sections with even less traffic.

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