The park offers access to the Pacific Crest Trail, along with many other area trails. From Mountain Station to Round Valley is 4 miles round trip with 600-foot elevation gain; to San Jacinto Peak is 11 miles round trip with 2,300-foot elevation gain.
Also, starting in Chino Canyon near Palm Springs, the Palm Springs Aerial Tramway takes passengers from Valley Station at 2,643 feet elevation to Mountain Station on the edge of the wilderness, elevation 8,516 feet.
From Riverside, take Interstate 10 East to Hwy 243 South to the park. From San Diego, take Interstate 15 North to 215 North, exit Hwy 74 east to Hwy 243 north to the park.
http://www.tripleblaze.com/trail.php?c=3&i=3563