William R. Mason Regional Park

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18712 University Dr
Irvine, CA 92612
Populated with rows and rows of shade trees and a beautiful 9-acre lake, the park's 345 acres offer biking paths, model boat sailing, a wilderness hiking area and three separate toddler areas.

Reviews

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4.5144 reviews
Photo of Christina R.
Christina R.
9/12/2025

William R. Mason Regional Park is clean, spacious, and versatile--good for family outings, solo jogs, or a casual afternoon. Wide paths support walking, running, or biking, though the lake can be...

Photo of Javier R.
Javier R.
8/6/2025

Mason regional park is your standard community area for entertainment. It has a lake thats vibrant and filled with life - fish and ducks... it has a walking and jogging paths that extend for...

Photo of Brittany T.
Brittany T.
7/17/2025

What a little haven in Irvine! I had no idea it existed until a friend recommended we go on a walk here. You do have to pay for entry ($3 on weekday, $5 on weekend) but iirc you can also buy an...

Photo of Brian F.
Brian F.
10/10/2024

William R. Mason Regional Park is located in Irvine, encompasses 345 acres, and is named after former Irvine Company president William R. Mason. The park runs along University Drive and is...

Photo of John S.
John S.
4/20/2025

I knew it was in Irvine, but when I brought my parents to William R. Mason Regional Park for the first time (during COVID), I didn't realize it was just northwest of UCI and just west of Concordia...

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