The San Bernadino Peak Trail out of Angelus Oaks is a very challenging hike, which can either be done as a day hike or an overnight trip. Free permits are required for day hiking and overnights in the San Gorgonio Wilderness. These permits can be accessed via Sgwa.org/permits.
If you choose to make this an overnight and break up some of the long trail, there are beautiful views from the Limber Pine Bench Camp.
Water Sources:
There are two campgrounds along the route: Columbine Camp and Limber Pine Camp. Columbine camp usually has water available (note it's at ~8,000'). This campground is ~4.7 miles from the trailhead just past Manzanita Flats and is located 0.7 miles below the trail to the right (south). Two miles further up the trail is Limber Pine Bench Camp (9,200'), where water can be found a the spring 0.3 miles past the camp.
Getting There:
From your initial location, drive toward the town of Angelus Oaks. Once close, turn east off Highway 38 onto Manzanita. Turn left onto the frontage road that parallels Hwy 38 followed by a right onto FS road 1W07, heading up a dirt road until (~300 yds) until you reach the Trailhead.
Closest Info Center:
Mill Creek Visitor Center
34701 Mill Creek Road
Mentone, CA 92359
1-909-382-2882 Thursday thru Monday. (Closed Tuesdays and Wednesdays)