Irvine Park Weekday Reserve Patrol Weekday Ranger Reserve patrol at Irvine Regional Park. Activity Details Date: Thursday, May 24, 2018 Time: 12:00 am - 11:59 pm Duration (hours:minutes): 23:59 Type: Stewardship Organization: OC Parks Area: Irvine Regional Park Staging Area: Irvine Regional Park Difficulty: Variable Minimum Age: 18 Email Activity to Friend Registration is closed for this activity..