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Come out and assist OC Park Rangers assigned to the Irvine Ranch Open Space (IROS) during this special access event. The event takes place in Red Rock Wilderness among beautiful oak woodlands and rolling hills, with spectacular views of Orange...

Date:
Sat, 04/18/2026
Time:
7:00 am - 2:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
1
Minimum Age:
17

PRE-REGISTRATION is REQUIRED for this event.  All participants are required to have, a printed copy or on their phone, the confirmation email to show through the window of their vehicle to drive through the entry gate. You will need the...

Date:
Sat, 04/18/2026
Time:
8:00 am - 2:00 pm
Where:
Red Rock Wilderness
Difficulty Rating:
Variable
Minimum Age:
All Ages
Family Friendly:
Yes

Join us on this moderate-paced hike over the ridge and the through beautiful Limestone Canyon Nature Preserve, part of OC Parks’ Irvine Ranch Open Space. We will enjoy short breaks at the East and West Sinks viewing platforms before hiking...

Date:
Sun, 04/12/2026
Time:
7:00 am - 11:00 am
Where:
Limestone Canyon Nature Preserve
Difficulty Rating:
4
Distance:
9.5 miles
Minimum Age:
18