Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Road cycling routes
United States
California
Orange County

William R. Mason Regional Park (Wilderness Area)

Routes
Road cycling routes
United States
California
Orange County

William R. Mason Regional Park (Wilderness Area)

The best road cycling routes in William R. Mason Regional Park (Wilderness Area)

4.5

(421)

8,322

riders

156

rides

Road cycling in William R. Mason Regional Park (Wilderness Area) offers a network of mostly paved routes across its 339 acres. The park features extensive green spaces, a 9-acre artificial lake, and a 123-acre natural wilderness area with rolling hills. Routes generally feature minimal elevation gain, making them accessible for various fitness levels. The park connects to larger bikeway networks, providing diverse terrain options.

Best road cycling routes in William R. Mason Regional Park (Wilderness Area)

  • The most popular road…

Last updated: August 5, 2026

149

riders

#1.

Upper Newport Bay Trail – Back Bay Loop Trail loop from Concordia University, Irvine

43.4km

02:03

500m

500m

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

Navigate with device

Send to Phone

Save

Moderate

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

Easy
guide_signup
Let us show you the way with the komoot mobile app
With a free komoot account, you can easily find, customize, and navigate endless outdoor adventures.

Sign up for free

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

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

Moderate
Sign up for free to see 152 more rides in William R. Mason Regional Park (Wilderness Area).

Get access to more routes and recommendations from other explorers.

Sign up for free

Already have an account?

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Start today with a free account

Your next adventure awaits.

Login or Signup

Popular around William R. Mason Regional Park (Wilderness Area)

Hiking 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)

Cycling in William R. Mason Regional Park (Wilderness Area)

Gravel biking in William R. Mason Regional Park (Wilderness Area)

Tips from the Community

George
July 7, 2025, I405 Overpass

Parallel with I-405, this is a beautiful trail with little traffic.

0

0

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.

0

0

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.

0

0

❗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.

0

0

Alex
September 14, 2024, Back Bay Loop Trail

The Back Bay Loop Trail offers a 10.5-mile scenic route around Upper Newport Bay. The well-signed trail passes through landmarks like Upper Castaways Park, Peter and Mary Muth Interpretive Center, and the Back Bay Science Center at Shellmaker Island. It also connects with the 22-mile Mountains to Sea Trail, stretching from Newport Bay to Weir Canyon. The trail has multiple entry points and provides opportunities to explore local nature and educational sites. Back Bay Drive, shared by vehicles, cyclists, and pedestrians.

0

0

Alex
February 5, 2024, San Diego Creek

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.

1

0

Zachary
January 26, 2024, South Lake Park

There are gazebos, bridges, and islands to explore along the numerous interweaving paved trails that take you around the park's beautiful turquoise lake.

0

0

Frequently Asked Questions

How many road cycling routes are available in William R. Mason Regional Park?

William R. Mason Regional Park offers a wide selection of road cycling routes, with over 150 different tours available. These routes cater to various skill levels, from easy rides to more challenging options.

What is the typical terrain and elevation gain for road cycling in the park?

The park's road cycling routes generally feature mostly well-paved surfaces with very little elevation gain, making them accessible for casual rides. However, some connected routes, such as the longer loops that extend beyond the immediate park boundaries, can offer more challenging inclines.

Are there family-friendly road cycling routes in William R. Mason Regional Park?

Yes, the park is very family-friendly. The trails within William R. Mason Regional Park itself are known for their minimal elevation gain and well-maintained surfaces, making them enjoyable for casual rides with family members. The park also offers amenities like tot lot playgrounds and picnic areas.

What natural features or landmarks can I expect to see while cycling?

While cycling, you'll experience lush green spaces, a picturesque 9-acre lake popular for model boat sailing, and interconnected streams. The park is also home to a diverse ecosystem, so you might spot various bird species like egrets and herons, as well as quail and rabbits, particularly around the lake and wilderness areas.

Are there any challenging road cycling routes for experienced riders?

While many routes within the immediate park are relatively flat, the park connects to larger bikeway networks that offer more challenging options. For instance, routes like the Upper Newport Bay Trail – San Diego Creek Trail loop, which is nearly 31 miles long, or the San Diego Creek – Hicks Canyon Trail loop, at over 34 miles, provide longer distances and some varied terrain for more experienced cyclists.

What are some popular loop trails for road cycling in the area?

Several popular loop trails are accessible from the park's vicinity. The San Diego Creek Trail – Shady Canyon Trail loop is a moderate 12.8-mile path featuring well-maintained surfaces. For longer rides, the Upper Newport Bay Trail – San Diego Creek Trail loop from University of California, Irvine offers a 26-mile circuit.

Is parking available for cyclists at William R. Mason Regional Park?

Yes, William R. Mason Regional Park provides ample parking facilities for visitors. There are designated parking areas within the park, making it convenient for cyclists to access the trails.

How can I reach William R. Mason Regional Park using public transport?

The park is accessible via public transportation. You can check the OCTA bus routes for stops near William R. Mason Regional Park in Irvine. Additionally, the Irvine CONNECT shuttle may have stops in the vicinity, offering further connectivity.

What is the best time of year to go road cycling in William R. Mason Regional Park?

The mild Southern California climate makes William R. Mason Regional Park suitable for road cycling year-round. However, spring and fall generally offer the most pleasant temperatures for outdoor activities, with less heat than summer and less chance of rain than winter.

Are there cafes or restaurants near William R. Mason Regional Park?

Yes, William R. Mason Regional Park is located in Irvine, which has numerous cafes and restaurants nearby. You can find various dining options within a short distance, including places suitable for a post-ride meal or coffee.

What do other road cyclists enjoy the most about road cycling in William R. Mason Regional Park?

The area is highly rated by the komoot community, with an average score of 4.4 stars from over 150 reviews. Reviewers often praise the park's lush green spaces, the picturesque lake, and the extensive connections to regional bikeway networks, which offer options for different ability levels.

Can I connect to other major cycling routes from William R. Mason Regional Park?

Absolutely. The park serves as an excellent hub, connecting to other prominent cycling routes such as the Mountains to Sea/Peters Canyon Bikeway, the Cypress Village Trail, and the San Diego Creek bike trail. This expands the possibilities for longer and more varied rides beyond the park's immediate boundaries.

Most popular routes in William R. Mason Regional Park (Wilderness Area)

Family-friendly hikes in William R. Mason Regional Park (Wilderness Area)

Store rating

Get inspired with the komoot mobile app

With a free komoot account, you can easily find, customize, and navigate endless outdoor adventures.

or

Join komoot Now

Store rating

Explore more

Browse the best Road cycling routes in other regions.

Newport BeachTustinAnaheimCypressRossmoorSeal BeachSanta Ana MountainsIrvineShady Canyon Open Space PreserveCrystal Cove State ParkLos AlamitosOrangeWestminsterMission ViejoLadera RanchSeal Beach National Wildlife RefugeHuntington BeachLaguna HillsCosta MesaGarden GroveVilla ParkSantiago Oaks Regional ParkLaguna NiguelQuail Hill Open Space PreserveBuena ParkFountain ValleyFullertonStantonYorba LindaIrvine Regional ParkLa PalmaWeir Canyon Regional ParkSan ClementeLa HabraMidway CitySanta AnaThomas F. Riley Wilderness ParkRonald W. Caspers Wilderness ParkSan Juan CapistranoLas FloresBommer Canyon Open Space PreserveRancho Mission ViejoPlacentiaPeters Canyon Regional ParkO'Neill Regional ParkCoto De CazaWhiting Ranch Wilderness ParkLaguna Coast Wilderness ParkModjeskaLaguna BeachTrabuco CanyonLake ForestSilveradoWilliams CanyonNorth TustinAliso And Wood Canyons Wilderness ParkBreaDana PointLaguna WoodsRancho Santa MargaritaAliso Viejo

Nearby adventure guides

Things to Do in Quail Hill Open Space Preserve

background

Get ready to conquer new peaks

Sign up for Free

Explore
RoutesRoute plannerFeaturesRedeem a voucherHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy