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Routes
Road cycling routes
United States
California
San Mateo County

San Bruno

The best road cycling routes around San Bruno

4.7

(77)

3,567

riders

91

rides

Road cycling around San Bruno offers routes characterized by varied topography, from flat lowlands near the Bay to the rolling hills of San Bruno Mountain. The region features significant natural landmarks such as San Bruno Mountain State and County Park and the scenic San Andreas Lake. Road cyclists can expect a mix of gentle gradients and more challenging ascents, often providing panoramic views of the San Francisco Bay Area.

Best road cycling routes around San Bruno

  • The most popular road…

Last updated: May 13, 2026

4.0

(1)

81

riders

#1.

San Andrea's Lake View – San Andreas Lake loop from San Bruno

47.0km

02:16

610m

610m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

Easy
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Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

Easy

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

Easy
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Tips from the Community

Zachary
June 25, 2025, Margarita Ave viewpoint

Looking northeast down the hill, on a clear day you can see all the way out across San Francisco Bay to Mount Diablo.

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The sculpture depicts "living-giving science" according to its artist, Marco Cochrane. It stands 24 feet tall, and was erected in front of biotech company Genesis Towers in 2020 to represent their mission. It shows a man and woman standing on top of a DNA strand, holding their hands in the shape of a heart.

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Lower Crystal Springs Reservoir is part of the Crystal Springs Reservoir system, and provides water to the San Francisco Bay Area. The area surrounding the reservoir is rich in biodiversity, home to rare and endangered species like the San Mateo thornmint and the Marin Dwarf Flax. While recreational activities on the water are restricted to protect the watershed, the adjacent Crystal Springs Regional Trail offers scenic views for hikers and cyclists.

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San Andreas Lake is a hidden gem tucked into the hills of San Mateo County, just south of San Francisco. Originally a natural sag pond formed by the San Andreas Fault, it was transformed into a reservoir in the late 1800s and now serves as a vital water source for the region. The lake is off-limits for swimming or boating, but you can enjoy its peaceful beauty from the San Andreas Trail or the popular Sawyer Camp Trail, which runs along its eastern edge. It's a serene spot where you can walk or bike with sweeping views of the water and surrounding hills, all while standing right on one of the world’s most famous fault lines. Despite its proximity to urban life, San Andreas Lake offers a quiet, scenic escape steeped in natural and historical significance.

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This paved lot has a few parking spots that are designated for trail users. There is no water or restrooms available.

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The stretch of El Camino Real through downtown Milbrae is an area of focus for repurposing some of the 6 lanes for more cycle, pedestrian, and business traffic. The goal is to make a safer, friendly slow traffic zone for residents and visitors alike.

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The Crystal Springs Regional Trail is a top spot for cyclists, featuring mostly paved paths with minimal car traffic. The trail runs through scenic areas like Lower Crystal Springs Reservoir, offering beautiful lake views. On Sundays, you can ride the car-free CaΓ±ada Road segment for a more relaxed experience. Be mindful of the 15 mph speed limit, especially around hikers. The Sawyer Camp segment provides a gentle descent and stunning views, perfect for an easy ride through woodlands and along the reservoir.

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scenic bike ride along the san andreas reservoir

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Frequently Asked Questions

How many road cycling routes are available around San Bruno?

San Bruno offers a diverse network of over 10 road cycling routes. These routes cater to various skill levels, including easy, moderate, and challenging options, allowing cyclists to explore the region's unique topography.

Are there easy road cycling routes suitable for beginners in San Bruno?

Yes, San Bruno has several easy road cycling routes perfect for beginners. For instance, the San Andreas Lake – San Andrea's Lake View loop from San Bruno is an easy 9.2-mile (14.8 km) trail that offers pleasant lake vistas and can typically be completed in under an hour.

What kind of scenery can I expect on San Bruno's road cycling routes?

Road cycling around San Bruno is characterized by rolling hills and extensive lake views, particularly around San Andreas Lake and Lower Crystal Springs Reservoir. Many routes also provide occasional glimpses of the San Francisco Bay, offering a mix of natural landscapes and urban fringes.

What are the typical lengths and durations of road cycling loops in San Bruno?

The road cycling loops in San Bruno vary significantly in length and duration. You can find shorter routes like the San Andreas Lake – San Andrea's Lake View loop from San Bruno, which is about 9.2 miles (14.8 km) and takes around 42 minutes. Longer, more moderate routes, such as the San Andreas Lake – Oracle Lagoon loop from San Bruno, extend to about 37.4 miles (60.3 km) and can take nearly 3 hours to complete.

What do other road cyclists enjoy most about cycling in San Bruno?

The road cycling routes in San Bruno are highly rated by the komoot community, with an average score of 4.7 stars from over 55 reviews. Cyclists often praise the diverse terrain, the beautiful lake views, and the mix of gentle gradients with more challenging ascents, particularly around features like San Andreas Lake.

Are there challenging road cycling routes for experienced riders in San Bruno?

Yes, for experienced riders seeking a challenge, San Bruno offers routes with more significant elevation gains. While most routes are easy to moderate, there is at least one difficult route available, providing a good workout amidst the region's rolling hills.

What is the best time of year for road biking in San Bruno?

The San Bruno area generally enjoys mild weather, making road cycling enjoyable for much of the year. Spring and fall often provide ideal conditions with comfortable temperatures and less chance of extreme weather. Summer can be pleasant, though coastal fog might be present, while winters are typically mild but can bring rain.

Are there any notable landmarks or attractions along the road cycling routes?

Yes, several notable landmarks and natural attractions are accessible or visible from the road cycling routes. These include the scenic San Andreas Lake and Lower Crystal Springs Reservoir. You might also encounter parts of the Devil's Slide bikeway (old Hwy 1) or pass by San Bruno Mountain State & County Park.

Can I access San Bruno's road cycling routes using public transport?

San Bruno is well-served by public transportation, including BART and Caltrain, which can facilitate access to the general area. Many routes start or pass through areas that are reasonably close to public transport hubs, allowing cyclists to combine their ride with transit options. Check local transit schedules for specific bike-on-train policies.

Are there any road cycling routes that specifically offer bay views?

While many routes focus on lake views and rolling hills, some sections of San Bruno's road cycling network do offer occasional glimpses of the San Francisco Bay. These routes often traverse higher elevations or areas closer to the coastline, providing panoramic vistas of the bay.

Are there less crowded road cycling options in San Bruno?

To find less crowded road cycling options, consider exploring routes during off-peak hours, such as early mornings or weekdays. While popular routes like the San Andrea's Lake View – San Andreas Lake loop from San Bruno can see more traffic, the region's extensive network means you can often find quieter paths, especially on routes that venture further into natural landscapes away from main thoroughfares.

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