William R. Mason Regional Park (Wilderness Area)
William R. Mason Regional Park (Wilderness Area)
4.7
(338)
2,476
riders
154
rides
Touring cycling in William R. Mason Regional Park (Wilderness Area) offers diverse landscapes across its 339 to 345 acres, featuring both manicured parkland and a significant wilderness area. The park includes a 9-acre lake, rows of shade trees, and lush gardens. The eastern side encompasses a 123-acre wilderness area characterized by rugged hills and a small creek, providing a more natural experience. Concrete paths are available for smooth rides, alongside unpaved trails in the wilderness section.
Last updated: July 10, 2026
5.0
(1)
11
riders
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
48.5km
04:44
1,100m
1,100m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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11
riders
27.9km
02:48
680m
680m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
11.2km
00:46
120m
120m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
6
riders
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around William R. Mason Regional Park (Wilderness Area)
Hiking in William R. Mason Regional Park (Wilderness Area)
Road Cycling Routes in William R. Mason Regional Park (Wilderness Area)

MTB Trails in William R. Mason Regional Park (Wilderness Area)
Running Trails in William R. Mason Regional Park (Wilderness Area)

Gravel biking in William R. Mason Regional Park (Wilderness Area)
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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Hicks Canyon Trail ends just ahead, but you can continue along the connecting Portola Parkway or the side path that branch off from this point.
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San Diego Creek is a 16-mile urban river that empties into Upper Newport Bay in Orange County. It follows Irvine's extensive system of trails and bike lanes, flowing through industrial areas, residential neighborhoods, and even the borders of the university campus.
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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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The trail is a nice easy packed dirt path with enough space to pass other hikers. The trail winds its way through the meadow with little shade and is representative of the other trails in Bommer Canyon.
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Turtle Ridge in the spring allows you to see wildflowers such as, Indian paintbrush, Johnny jump-ups, mariposa lilies, and buttercups.
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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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The trail is a nice easy packed dirt path with enough space to pass hikers. The trail winds its way through the meadow with little shade and is representative of the other trails in Bommer Canyon.
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There are over 140 touring cycling routes available in William R. Mason Regional Park (Wilderness Area) and its immediate surroundings. These routes cater to various skill levels, with a significant number being easy to moderate.
Yes, William R. Mason Regional Park offers many family-friendly options. Over 60 of the routes are rated as easy, featuring mostly well-paved surfaces and minimal elevation gain, making them suitable for cyclists of all ages. The park's manicured areas and concrete paths are particularly good for a smooth ride.
The park offers a diverse cycling experience. You'll find routes through manicured parkland with rows of shade trees and lush gardens, especially on the western side. A beautiful 9-acre lake is a prominent feature, and the eastern side encompasses a 123-acre wilderness area with rugged hills and a small creek, providing a more natural, untamed experience.
Yes, many routes in the area are designed as loops. For example, the San Diego Creek – Woodbridge North Lake Path loop from Concordia University, Irvine is an easy 11.2-mile path that offers scenic lake views and follows the San Diego Creek. Another option is the Shady Canyon Trail loop from University of California, Irvine, which covers 9.5 miles through varied terrain.
William R. Mason Regional Park is generally pleasant for cycling year-round due to Southern California's mild climate. However, spring and fall often offer the most comfortable temperatures for longer rides. Summers can be warm, so early mornings or late afternoons are preferable, while winters are typically mild and suitable for cycling.
The routes in William R. Mason Regional Park are highly rated by the komoot community, with an average score of 4.6 stars from over 190 reviews. Cyclists often praise the diverse terrain, from smooth paved paths to more rugged wilderness trails, and the scenic beauty of the lake and natural areas. The connectivity to broader regional trail networks is also a highlight for many.
Yes, William R. Mason Regional Park offers ample parking facilities for visitors. There are designated parking areas within the park, making it convenient to access the various cycling trails. Specific parking details and potential fees can often be found on the official Orange County Parks website.
Yes, dogs are permitted on trails within William R. Mason Regional Park, provided they are kept on a leash. This allows you to enjoy a touring cycling adventure with your canine companion, especially in the wilderness areas and along the various paths.
Absolutely. The park's trails connect to broader regional networks, offering extended touring opportunities. For instance, the Back Bay Drive – View of San Diego Creek loop from Concordia University, Irvine is a 24.9-mile route that links to the San Diego Creek Trail and Upper Newport Bay Trail, providing a more extensive ride.
The routes in William R. Mason Regional Park cater to a range of abilities. You'll find many easy routes with mostly well-paved surfaces and minimal elevation, ideal for beginners or casual rides. There are also moderate routes, such as the View of San Diego Creek – Back Bay Drive loop from University of California, Irvine, which might include more varied terrain or longer distances, and some more challenging unpaved segments in the wilderness area.
While the park itself is primarily a natural and recreational area, its location in Irvine means there are numerous cafes, restaurants, and dining options available in the surrounding neighborhoods. You'll find various establishments within a short cycling or driving distance from the park's entrances.
Public transport options to William R. Mason Regional Park are available, though they may require some planning. Local bus services operate in the Irvine area, and some routes may have stops within reasonable proximity to the park. It's advisable to check current schedules and routes with Orange County Transportation Authority (OCTA) for the most up-to-date information.


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