Thunder Creek is a beautiful old-growth forest hike alongside a glacial creek. The trail crosses Thunder Creek on a suspension bridge at approximately 2 miles (3.2 km), then continues for another 38 miles (61 km). Turn around at the bridge for an easy hike.

• Difficulty: Easy. 
• Distance and elevation: 4 miles (6.4 km) roundtrip to the bridge with little elevation gain.
• Access: The trailhead is located at the south end of Colonial Creek Campground.
• Leashed dogs allowed.

Detailed trail description.