01
Best big-mountain challenge
San Bernardino Peak Trail
Angelus Oaks • High-Elevation Summit Hike • Big-Day Adventure
A long, demanding climb to a 10,000‑plus‑foot summit with sweeping views over the Inland Empire and neighboring peaks.
This is the iconic suffer‑fest for strong local hikers: roughly 16 miles round‑trip with serious elevation gain and thin air near the top. Start well before sunrise, carry plenty of water, and expect a steady, relentlessly uphill grade through oaks, pines, and finally open ridgeline. On clear days you’ll see all the way across the San Gabriel range and deep into the desert, making the effort feel completely earned.
02
Most photogenic short hike
Heart Rock and Seeley Creek Falls Trail
Crestline • Shaded Creek And Waterfall Trail • Best For Photo Ops
A short, mostly shaded walk along Seeley Creek to a small waterfall and the famous heart‑shaped rock carved into the cliff.
Just above Crestline, this trail feels like a quick escape to the mountains without committing to a full day out. The path is easy to follow and gently rolls along the creek before opening up at a rocky overlook where you can spot the heart‑shaped pool and falls below. Go early or on weekdays if you want quieter conditions at the viewpoint, and watch your footing near the cliff edges where people scramble for better angles.
03
Best family-friendly forest loop
Heaps Peak Arboretum Nature Trail
Near Lake Arrowhead • Short Interpretive Forest Loop • Family-Friendly Starter Hike
A gentle loop through fir and pine forest with interpretive signs that make it easy to turn into a low‑key nature walk.
If you want mountain air without a big workout, this is an easy win just off Highway 18. The loop is short, mostly flat, and dotted with signs explaining the local trees, plants, and wildlife, which keeps kids engaged and gives visitors a feel for the San Bernardino National Forest. It’s a good first stop on a day in the mountains, or a leg‑stretch break on the drive up to Lake Arrowhead or Big Bear.
04
Best lake-view climb
Castle Rock Trail
Southwest Big Bear Lake • Rocky Lakeview Climb • Classic Weekend Outing
A short but steep trail that winds through granite boulders and pines to a rocky outcrop overlooking Big Bear Lake.
Castle Rock packs a lot into a few miles: steady climbing, big granite slabs, and a summit area that feels like a natural playground. The viewpoint looks straight down on Big Bear Lake and across to the higher peaks, making it a favorite for sunrise and sunset. Parking can be tight along the highway and the trail gets busy on summer weekends, so aim for early morning if you prefer a quieter climb.
05
Best foothill workout with water
Etiwanda Falls Trail
North Rancho Cucamonga • Foothill Canyon Hike To Waterfalls • After-Work Workout Pick
A steadily uphill path through the North Etiwanda Preserve to a shady picnic area and small cascading falls.
About a half hour from downtown San Bernardino, this trail trades pine forest for open foothill views, city lights, and a rewarding creekside turnaround point. The route is wide and straightforward but exposed, so it’s ideal in cooler months or for sunrise and sunset hikes when the light over the valley is best. Expect company—this is a popular local training hike—yet the sound of the water and the breeze in the sycamores at the falls still feel surprisingly peaceful.