Forest Falls Area Hiking Guide
Tucked into the San Bernardino Mountains at the end of a scenic canyon road, the Forest Falls area delivers one of Southern California's most accessible waterfall experiences. Big Falls — the tallest waterfall in San Bernardino County — tumbles dramatically through a boulder-strewn canyon shaded by oak, alder, and pine. The trail system here suits a wide range of hikers, from families looking for a short creek walk to more adventurous trekkers willing to scramble upstream toward the falls.
Getting to the Forest Falls Trailhead.
From Yucaipa, take Bryant Street east until it becomes Valley of the Falls Drive, then follow it all the way into the Forest Falls community. The trailhead parking area is at the end of the road near the picnic grounds. Arrive early on weekends — the small lot fills quickly, especially in spring and early summer when water flow peaks. A National Forest Adventure Pass or equivalent federal recreation pass is required to park. No permit is needed for day hiking, but always check the San Bernardino National Forest website for any closure alerts before you go, particularly after heavy rain or fire weather events.
Trail Overview and Route Description.
The main path follows Mill Creek wash through a lush riparian corridor before angling toward Big Falls. Early sections are wide, well-worn, and shaded by alders that create a cool canopy even on warm days. As you approach the falls, the terrain becomes rockier and requires modest scrambling over boulders. The canyon walls close in, amplifying the sound of rushing water before the falls come into view. Most hikers turn around at Big Falls, making the round trip roughly 4 miles with manageable elevation gain. Stronger hikers can continue upstream on use trails, though these paths become increasingly unmaintained and require route-finding skills.
Seasonal Conditions and Water Levels.
Spring is the prime season for Forest Falls, when snowmelt swells Big Falls into a powerful cascade and wildflowers dot the canyon floor. Summer remains popular but brings afternoon thunderstorms — flash flooding in Mill Creek wash is a real hazard, so watch the sky and exit the canyon early if storms build. Fall offers quieter trails, golden alder foliage, and cooler temperatures ideal for longer exploration. Winter can bring snow to the upper trailhead area and ice on creek crossings; check road conditions before driving up. The creek crossings that feel trivial in late summer can become genuinely dangerous after significant rain events at any time of year.
Safety Considerations
Flash flood risk is the most serious hazard in this canyon. Because the watershed above Forest Falls is large, storms many miles away can generate dangerous surges with little warning. Never camp in the wash and always keep an eye on sky conditions upstream. Creek crossings require waterproof boots or willingness to get wet — slippery rocks cause most minor injuries on this trail. Sun protection is less critical in the shaded lower canyon but essential if you scramble above the tree line. Cell service is limited deep in the canyon, so share your itinerary with someone before heading out. Hiking in a group significantly improves safety margins here.
Wildlife and Nature Highlights
The riparian corridor at Forest Falls supports an impressive variety of wildlife for an Inland Empire trail. American dippers — small gray birds that walk along stream bottoms — are regularly spotted near the falls. Mule deer are common in the early morning, and black bears do inhabit this part of San Bernardino National Forest, so proper food storage is important. The old-growth oaks and big-cone Douglas firs along the upper route feel worlds apart from the valley below, and the sound design of the canyon — wind through conifers, rushing water, birdsong — makes this one of the more immersive nature experiences within an hour of the greater Los Angeles metro area.
Parking, Fees, and Facilities
The Forest Falls picnic area has restrooms near the parking lot — use them before hitting the trail, as there are no facilities farther in. A federal recreation pass covers the parking fee; daily passes can be purchased at the trailhead if you don't have an annual pass. The road into Forest Falls is paved but narrow in sections, and parking overflow spills onto road shoulders on busy weekends. Arrive before 9 a.m. on peak days to secure a spot close to the trailhead. There are no shuttle services, so carpooling is both practical and environmentally considerate given the limited parking capacity.
Hiking tips for Forest Falls Area
- Wear waterproof trail shoes or expect to get your feet wet — creek crossings are unavoidable and rocks are consistently slippery.
- Start before 9 a.m. on spring and summer weekends to claim parking and beat afternoon thunderstorm windows.
- Bring at least 2 liters of water per person even though the creek runs nearby — treat or filter any water you collect from the stream.
- Do not enter the creek wash if you hear a distant rumble or see the sky darken upstream; move immediately to higher ground.
- Dogs are welcome but must be kept on leash throughout the trail corridor to protect wildlife and other hikers.
Nearby trails to explore
- Vivian Creek Trail to Mount San Gorgonio.
- Cougar Crest Trail to Bertha Peak.
- Whispering Pines Trail at Big Bear Lake.
Hike this trail with TrailMates
Waterfall hikes are better with a crew — and TrailMates makes it easy to find hiking partners matched to your pace before you hit the Forest Falls trailhead. Download the TrailMates app to plan your next group outing, or download TrailMates from the App Store and connect with Inland Empire hikers today.