Trail · San Bernardino National Forest
Castle Rock Trail review
Castle Rock Trail is a short, steep forest climb from a Highway 18 turnout to a granite formation overlooking Big Bear Lake. It suits hikers seeking a substantial climb and wide view without an all-day route.
- Best for: Short hike, big lake view
- 2.4 mi round trip
- Our score 6.2/10
At a glance
- Moderate-to-difficult 2.4-mile round trip
- Castle Rock Trailhead on State Highway 18
- No Adventure Pass required at the turnout
- Dogs must be restrained on a leash no longer than 6 feet
- Best for: a short hike with a large view payoff
Our score
6.2 /10
The lake panorama rewards the short climb, but steep loose footing, confusing upper junctions and limited parking pull it down.
- Views and payoff 8
- Trail quality 5
- Access and parking 7
- Crowds 3
What it is known for
The Forest Service describes a 1.2-mile one-way trail with roughly 500 feet of climbing from the roadside trailhead.
Reviewers repeatedly mention the broad lake view, loose rock and poorly marked junctions near the top, making a downloaded route useful.
Strengths and limits
Pros
- Wide Big Bear Lake views
- Short route with a distinct destination
- No pass required at the turnout
Cons
- Small roadside parking area
- Steep, loose sections
- Confusing junctions near the top
Before you go
Is an Adventure Pass required?
No. The Highway 18 turnout does not require an Adventure Pass, per the Forest Service trail page.
Are dogs allowed?
Yes. Dogs must be on a leash no longer than 6 feet or otherwise physically restrained, per the Forest Service.
Is the route easy to follow?
The Forest Service identifies the official trail, but AllTrails reviewers repeatedly mention confusing upper junctions. Carrying an offline map is prudent.
Where it is
Nearby alternatives
Who reviewed this
Jenna Whitcomb
Local guide editor
Jenna Whitcomb edits Near Big Bear. Every trail on this page was checked against the US Forest Service and OpenStreetMap on the date below.
- Updated
- September 22, 2026