William R. Mason Regional Park

Park and Lake
18712 University Dr (Culver Drive), Irvine, CA 92612, United States
None listed (See when people check in)

People tend to check in during these times:

  • Today
    • 9:00 AM–10:00 AM
    • 1:00 PM–2:00 PM
    • 4:00 PM–5:00 PM
    • 7:00 PM–8:00 PM
  • Wed
    • 9:00 AM–10:00 AM
    • Noon–5:00 PM
  • Thu
    • 8:00 AM–10:00 AM
    • 1:00 PM–7:00 PM
  • Fri
    • 8:00 AM–10:00 AM
    • Noon–7:00 PM
  • Sat
    • 8:00 AM–7:00 PM
  • Sun
    • 9:00 AM–8:00 PM
  • Mon
    • 8:00 AM–10:00 AM
    • 2:00 PM–7:00 PM

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.


Based on 20 votes

People like this place

Total Visitors
Total Visits
  • What you need to know
    Sarah Z.
    Plenty of private picnic tables, playgrounds, hiking trails, etc.(2 Tips)
    Anne Marie
    Park off San Joaquin for free!(2 Tips)
    Lauren W.
    Love this park!(3 Tips)
    Drew T.
    They have made off street parking illegal on the weekend....wow.(3 Tips)
Log in to leave tips at this venue!
  • Recent
  • Popular

14 tips. Filter by taste:

  • all tips
  • picnics
  • hiking trails
  • playground
  • park
  • turtles
  • lakes
  • parking
  • Robin C.

    Lots of ducks and geese here at the lake. Water is pretty murky though.

    Robin Chen · January 26
  • Skye Q.

    Finlay Associates: Taxation Read more

    Skye Quinn · December 11, 2014
  • Dipjyoti G.

    Lake with ducks and pelicans

    Dipjyoti Ghosh · October 13, 2014
  • Meredith M.

    Great spot for gatherings, large or small. Beautiful open green spaces. You have to pay for parking, though!

    Meredith Maimoni · August 31, 2014
  • Feras S.

    They accept reservations. They'll put a sign & everything.

    Feras Sh · August 25, 2014
  • Sarah Z.

    Beautiful green acres with a variety of lush trees, lake, ducks, turtles, and a myriad of birds! Plenty of private picnic tables, playgrounds, hiking trails, etc.

    Sarah Zbleumoon · September 30, 2013
  • Cruise B.

    The free parking across the street is no longer available. Make sure to check the signs if you plan to park in Rancho San Joaquin.

    Cruise Buzz · February 23, 2013
  • Scandia O.

    Has a lake.:-)

    Scandia Onofre · November 3, 2012
  • Drew T.

    They have made off street parking illegal on the weekend....wow.

    Drew Traversone · September 29, 2012
  • Cindy K.

    Lots of picnic tables and BBQs! Some of the picnic shelters even have sinks.

    Cindy K · July 23, 2012
  • Lauren W.

    Love this park! My challenge? Start your stretches and other stationary exercises under a specific tree by the lake, run an entire circle around the lake back to your spot & repeat!

    Lauren W. · June 12, 2012
  • Lillie R.


    Lillie Rowan · February 12, 2012
  • Carrie J.

    Be on the lookout for great horned owls!

    Carrie J. · September 23, 2010
  • Anne Marie

    Park off San Joaquin for free!

    Anne Marie · May 15, 2010

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