Here. We parked in parking lot 21 located on the Irvine Regional Park map. You could also park at lot 4 or 19, which also provide easy access to the hiking trails at Irvine Regional Park.
Here and map of the hiking trails at Irvine Regional Park can be found Here. Ashley and I did part of the Horseshoe Loop Trail. The trail is in great shape and the park was well maintained. When you go hike in the park there is a high probability that you will see others while out on the trail. There are only a limited amount of hiking trails in this park, which is one negative that we saw, however it is still worth visiting due to the amazing scenery. The park is 477 acres in size, but connects to a vast wilderness area that is connected to the Cleveland National Forest. It costs 5 dollars per vehicle to enter the park on the weekends and 3 dollars per vehicle during the week.
Santiago Oaks Regional Park. If you are interested you can also hike from one park to the next.
Rating: Elevation Gain: 100 ft. (Easy), Distance: 2.5 Miles Roundtrip (Easy).
Time to Complete Hike: 1 hour.
MORE WRITE-UPS ON IRVINE REGIONAL PARK