BONUS: A candy store in the middle of the mountains? You bet. Find it directly across from the trailhead. Stop in for an old-school giant lollipop or grab lunch in the form of hot dogs, soda, ice cream, or cookies. Sweet!
Take I-5 to San Juan Capistrano and exit Ortega Hwy. (CA-74). Drive east for 19.4 miles to the trailhead parking area on the left across from Ortega Oaks Candy Store (34040 Ortega Hwy., Lake Elsinore). Hike north from the trailhead 1/3 of a mile to the brink of San Juan Falls. Continue down the trail, staying to the left through a pair of junctions. Pass Upper San Juan Campground and follow the loop trail uphill back to the trailhead, sticking to the most worn track past a couple spur trails breaking off to the left. An adventure pass is required to park at the trailhead and may be purchased from the candy store. Dog-friendly!