4.9
(7)
64
riders
9
rides
Gravel biking in Bommer Canyon Open Space Preserve offers a network of unpaved dirt and gravel roads across a 4,000-acre natural sanctuary. The preserve features diverse terrain, including gentle valleys, rolling hills, and ridgelines, with elevations reaching up to 2,100 feet. Riders can navigate through serene oak and sycamore groves, native grass meadows, and coastal sage scrub. This landscape provides varied experiences for gravel bikers seeking no traffic routes.
Last updated: July 23, 2026
5.0
(1)
3
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
13
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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7
riders
32.9km
03:03
730m
730m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
13
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Bommer Canyon Open Space Preserve
This is a nice little loop around El Moro (now known as Crystal Cove). Some fun climbing, some fun downhill, some fun singletrack but mostly fire road. Nothing too techy.
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This paved multi-use path winds over gently rolling terrain with cacti, flowers, and some sparse tree cover. This is a great brief escape from the city without leaving Irvine.
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The trail is wide packed dirt and takes you through the meadows and rolling hills. This is the backbone of the Shady Canyon trail system and connects to a number of other trails and routes in the park.
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This trail is fast and nontechnical, and you get great views across the rolling hills of Crystal Cove State Park all the way down to the ocean. Hikers and dog-walkers share these trails but the path is fairly wide and visibility is good.
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Other than a few people walking, this trail is empty and great for a scenic ride among vegetation.
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This trail places you at the top of Crystal Cove State Park with expansive views of all the protected land and ocean off in the distance.
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Laguna Coast Wilderness Park is nestled in the last coastal canyons of Southern California. With 40 miles of trails meandering through oak and sycamore woodlands, the park offers a scenic journey leading to ridges with breathtaking vistas.
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There is a wide packed dirt trail for foot traffic that parallels a two-lane paved bikeway through Shady Canyon.
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Komoot features 6 dedicated no-traffic gravel bike routes within Bommer Canyon Open Space Preserve. These routes offer a mix of moderate and challenging rides, perfect for exploring the preserve's natural beauty without vehicle interference.
The preserve offers diverse terrain, from gentle valleys and rolling hills to ridgelines reaching up to 2,100 feet. You'll primarily ride on unpaved dirt and gravel roads, with some trails featuring significant elevation changes and challenging climbs, while others are more moderate. The varied landscape ensures a dynamic gravel biking experience.
While many trails offer a good workout, some paths within Bommer Canyon are suitable for families. The preserve features an extensive network, and you can find easier sections, particularly around the flatter valley areas. Always check the route details for difficulty before heading out with children.
Bommer Canyon is rich in natural beauty and history. You can ride through serene oak and sycamore groves, past native grass meadows, and coastal sage scrub. A significant historical attraction is the Historic Cattle Camp, offering a glimpse into the area's ranching past. The Nature Loop trail also features placards describing native plants. Keep an eye out for diverse wildlife, including mule deer and various bird species.
Thanks to its proximity to the ocean, Bommer Canyon generally experiences milder temperatures compared to more inland locations. This makes it a pleasant riding environment for much of the year. Spring and fall often offer the most comfortable conditions, with lush vegetation and cooler temperatures. Always check local weather forecasts before your ride.
Yes, Bommer Canyon offers several challenging routes for experienced gravel bikers. For instance, the Serrano Ridge Trail – Shady Canyon Trail loop from University of California, Irvine covers nearly 28 km with over 550 meters of elevation gain, rated as 'difficult'. Another demanding option is the Shady Canyon Trail – Serrano Ridge Trail loop from Crystal Cove State Marine Conservation Area, which is over 36 km long with more than 800 meters of climbing.
Yes, many of the gravel bike routes in Bommer Canyon Open Space Preserve are designed as loops, allowing you to start and end at the same point. An example of a moderate circular route is the Pacific Ridge Trail – Laguna Coast Wilderness Park loop, which offers a 15.9 km ride with scenic views.
The komoot community highly rates the gravel biking experience in Bommer Canyon, with an average score of 4.8 out of 5 stars. Reviewers often praise the preserve's extensive network of unpaved trails, the diverse natural scenery, and the opportunity to enjoy a traffic-free ride through a significant natural landmark.
Yes, Bommer Canyon Open Space Preserve offers trail connections to other significant natural spaces. You can link up with trails leading into Crystal Cove State Park and Laguna Coast Wilderness Park, providing opportunities for even longer and more varied gravel biking adventures beyond the preserve's boundaries.
Given the diverse terrain and potential for elevation changes, it's advisable to bring plenty of water, especially on warmer days. Sun protection (sunscreen, hat, sunglasses) is also recommended. A basic bike repair kit, snacks, and a fully charged phone with your komoot route downloaded are also good ideas for a safe and enjoyable ride.
Absolutely. For intermediate riders looking for a balanced challenge, the Cave Rock – Wood Canyon Trail loop from Aliso Viejo is a great option. This route covers about 15.7 km with over 320 meters of elevation gain and is rated as 'moderate', offering a rewarding ride without being overly strenuous.


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