4.4
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6,682
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125
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Road cycling in Bommer Canyon Open Space Preserve offers routes through a diverse landscape of oak and sycamore groves, native grass meadows, and coastal sage scrub. The preserve features rolling hills and terrain with elevation changes, providing varied experiences for cyclists. Spanning approximately 4,000 acres, this area is part of the historic Irvine Ranch, a National Natural Landmark.
Last updated: July 23, 2026
4.3
(6)
181
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(2)
162
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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26
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
26
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
6
riders
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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Beautiful ride that connects with many other trails. The only downside is the operators of E bikes speeding and riding like idiots, scary!
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Parallel with I-405, this is a beautiful trail with little traffic.
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The trail here is paved and designed specifically for foot traffic and bikes with two separate cycling lanes. You get great views across Newport Bay to the ecological reserve as you pass by a couple small parks and vista points.
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From this spot, you get a nice view over the Upper Newport Bay Ecological Reserve. It is one of Southern California's largest remaining coastal wetlands. This estuary comprises diverse habitats, including salt marshes, mudflats, and riparian zones, providing critical environments for numerous plant and animal species. The reserve is also a vital stopover for migratory birds along the Pacific Flyway, with up to 35,000 birds present during winter migration. It supports nearly 200 bird species, including endangered ones like the Light-footed Clapper Rail and California Least Tern.
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From this viewpoint on the Mountains to Sea Trail, adjacent to Eastbluff Drive, you get a nice view over San Diego Creek. This is a great spot to pause and take in the views and look for birds and other wildlife.
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❗The northern segment of the Back Bay Loop Trail, specifically the Bay View Trail including the pedestrian bridge, is closed for repairs from December 9 to December 27, 2024. This closure is in effect daily, including weekends. A detour along Mesa Drive is available for trail users to reconnect with the trail.
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Road cycling routes in Bommer Canyon Open Space Preserve traverse diverse landscapes, including serene oak and sycamore groves, native grass meadows, and coastal sage scrub. You'll encounter rolling hills and terrain with significant elevation changes, providing varied experiences. While some paths are paved, others might be suitable for gravel bikes, offering a mix of surfaces.
There are over 120 road cycling routes available in Bommer Canyon Open Space Preserve. These routes cater to various skill levels, with 61 easy routes, 65 moderate routes, and a few more challenging options.
Yes, Bommer Canyon Open Space Preserve offers a good selection of easy routes. For instance, the San Diego Creek Trail – San Diego Creek loop from University of California, Irvine is an easy 11.4-mile (18.3 km) path that follows the San Diego Creek, offering a relatively flat and accessible ride.
As you cycle through the preserve, you can explore the historic "Cattle Camp," a 15-acre area that once served as a ranching headquarters. The newly-opened Bommer Canyon Nature Garden is also a point of interest. The routes themselves offer scenic views of oak and sycamore groves, native grass meadows, and coastal sage scrub. On clear days, some trails, like those from Bommer Pass, can even offer views extending nearly 40 miles to downtown Los Angeles or connect to the ocean.
The routes in Bommer Canyon Open Space Preserve are highly rated by the komoot community, with an average score of 4.4 stars from over 160 reviews. Cyclists often praise the diverse landscapes, from oak groves to coastal sage scrub, and the varied terrain that offers both easy loops and more challenging rides with elevation changes. The connection to scenic areas like Upper Newport Bay is also frequently highlighted.
For those seeking a longer and more challenging ride, the Upper Newport Bay Trail – San Diego Creek Trail loop from Newport Beach California Temple is a moderate 33.4-mile (53.8 km) route with significant elevation changes, providing a more extensive cycling experience.
Yes, several routes from Bommer Canyon Open Space Preserve connect to coastal areas. For example, the Upper Newport Bay Trail – Huntington State Beach loop from University of California, Irvine is a moderate 35.3-mile (56.8 km) route that will take you towards the coast.
The preserve is generally open daily from dawn to dusk for self-guided exploration. Occasionally, "Wilderness Access Days" or guided programs may offer access to additional trail networks.
Bommer Canyon is a crucial preservation area for numerous local plants and wildlife. It's considered a hot spot for birding, with species like acorn woodpeckers, cactus wrens, and greater roadrunners. You might also spot mule deer. The presence of Bommer Canyon Creek further enhances the natural setting, making it a great place to observe nature.
Yes, many of the road cycling routes in Bommer Canyon Open Space Preserve are designed as loops. A popular option is the Roadbike loop from University of California, Irvine, which is a 12.7-mile (20.4 km) trail leading through varied terrain.
While specific seasonal recommendations aren't provided, the diverse landscapes and varied terrain make Bommer Canyon enjoyable year-round. However, given its Southern California location, spring and fall often offer the most pleasant temperatures for cycling, avoiding the peak heat of summer or potential winter rains.
While the guide doesn't specify dedicated parking for cyclists within the preserve, many routes start from locations like the University of California, Irvine, which typically offer parking facilities. It's advisable to check local parking options near your chosen route's starting point.


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