This trail leads through old growth forest above the turquoise waters of the Thunder Arm of Diablo Lake.
Thunder Woods Nature Trail

Length
1.2 miles, roundtrip
Elevation
Gain: 305 ft.
Highest Point: 1620 ft.
Rating
Parking Pass/Entry Fee
Northwest Forest PassThunder Woods Nature Trail
Map & Directions
Getting There
Highway 20 to Colonial Creek campground at Milepost 130. Turn into the main campground on the south side of the highway. Proceed to the Thunder Creek trailhead near the Amphitheater. Follow this trail about 300 yards to the trail junction on your right.