Northeast of San Bernardino and south of Big Bear Lake in the San Bernardino National Forest, the Big Bear Lake - Cactus Flats area has 62 miles of forest roads and trails open to ATV riding.
The best trailheads are: Cactus Flats Staging northeast of Big Bear Lake, Big Pine Flats Campground northwest of Big Bear Lake and Crab Flats Campground between Lake Arrowhead and Big Bear Lake.
Note: As of September 2007, ATV riding is only permitted on designated Forest Service roads as long as the ATV has a valid California green ATV sticker. To obtain a map with the designated roads, contact the Forest Service HQ at (909) 382-2600.
Overall, Big Bear Lake - South is the 10th most popular ATV riding trail of all 106 ATV trails in California.