William R. Mason Regional Park
Mason Regional Park is located in the heart of Irvine, California. It comprises 339 acres of green space with trees, a 9-acre lake popular for model boat sailing, multiple play structures and various hiking and biking trails.
Mason Regional Park first opened in 1973 with 45 acres available to the public. Additional park space including the lake, opened in 1978.
William R. Mason Regional Park Visitor Information
Know before you go: Mason Regional Park has a lake for model boating, paved walking and biking paths, playgrounds, picnic areas and restrooms. Swimming, wading and fishing are not permitted in the lake or creek. Dogs must be on leashes no longer than six feet. Parking fees may differ on holidays and during special events. Check OC Parks for the latest rules, hours and alerts.
Trail alert (fall 2026): Pedestrian bridge work in the wilderness area east of Culver Drive is scheduled from August through November 2026, with some trails temporarily closed. Check OC Parks trail notices before using that area.
Address: 18712 University Drive, Irvine, CA 92612-2601
Park Hours: 7:00 AM - 9:00 PM Spring-Summer, 7:00 AM - 6:00 PM Fall-Winter
Parking: $3 per vehicle entry Monday - Friday; $5 Saturday - Sunday
Phone: 949-923-2220
Email: masonpark@ocparks.com
Website: https://parks.oc.gov/parks-trails/william-r-mason-regional-park
Dogs allowed on leash
What’s At William R. Mason Regional Park
Trails
William R. Mason Regional Park has multiple trails traversing throughout the park. You can bike or hike the entire park boundary at just shy of three miles in length. All the trails are great for the entire family with very little elevation gain. There is a fitness course along the paved trails within the park.
There are concrete hiking and biking trails throughout the park. For additional hiking and biking, Mason Regional Park has a 123-acre Wilderness Area on the other side of Culver Drive. The unpaved trails here include Sand Canyon Wash Trail and Turtle Rock Trail.
Dogs are permitted on trails while on-leash, and horses are permitted on approved equestrian trails.
Strawberry Farms Golf Course (Nearby)
Adjacent to the park, Strawberry Farms is an 18-hole public golf course with a clubhouse restaurant. For tee times, dining hours, dress code and other details, visit the official golf club website.
Address: 11 Strawberry Farm Rd., Irvine, CA 92612
Hours: 6:30AM - 8PM
Phone: 949-551-1811
Strawberry Farms Website
Farmhouse Grill
Hours: Daily 6AM to close
Serves: Breakfast, Lunch and Dinner
Farmhouse Grill Menu
The Farmhouse Grill is Strawberry Farms Golf Club's restaurant with a country-style dining room and outdoor veranda to enjoy beautiful views while enjoying your meal. Check the restaurant's current breakfast hours before visiting. The full menu can be ordered to go as well, plus there are grab-and-go items available to purchase for a quick snack on the course.
Model Boat Sailing
Mason Regional Park is a popular spot for model boat sailing enthusiasts. Orange County Model Sail Club meets here regularly for weekly club events and for their annual Spring Regatta. Swimming, wading, and fishing are not permitted in the lake or creek.
Sports and Play Areas
William R. Mason Regional Park has multiple courts to enjoy. There are multiple picnic areas including a large shelter available for group reservations. There is a softball backstop with large turf areas, two sand volleyball courts, a physical fitness vita course, and three tot lot playgrounds.
All Mason Regional Park Amenities
- Amphitheater
- Ball Fields
- Bike Trails Bird Watching
- Dogs allowed on-leash
- Equestrian Trails
- Fitness course
- Gazebo
- Hiking Trails
- Horseshoe Pits
- Interpretive Programs
- Model Boats
- Picnic Areas
- Picnic areas (tables, restrooms)
- Picnic shelters for reservation
- Playground Tot Lot
- Playgrounds
- Restrooms
- Shelters
- Volleyball Courts
The park has six picnic shelters with picnic tables, including accessible tables. Some group shelters require advance reservations. Check OC Parks for current reservation requirements, fees and permits. Reserving a shelter does not guarantee nearby parking.
William R. Mason Regional Park Events
Summer Concerts and Outdoor Movies
Mason Regional Park periodically hosts OC Parks summer concerts and outdoor movie screenings. Dates, participating parks, food trucks and parking arrangements change each year; see the official OC Parks calendar for upcoming events rather than relying on a previous summer's schedule.
OC Parks schedules seasonal concerts and movie events at participating county parks, including Mason Regional Park in some years. Event details change annually; check the official calendar instead of assuming a fixed concert schedule at Craig Regional Park, Mason Regional Park, Irvine Regional Park, Mile Square Regional Park and Bluff Park at Salt Creek Beach. You'll enjoy live music under the summer sky on Thursday evenings from June through August.
For each scheduled event, confirm the start time, admission, food vendors and any special parking arrangements on the OC Parks event listing.
Event parking: Free or reduced parking is event-specific; regular park entry fees may apply at other times.
