This is a great all season hike in the Gifford Pinchot National Forest. The trail starts out at the popular Trapper Creek Trailhead, but in a hundred feet, you turn right and leave most of the crowds. The trail follows a beautiful babbling creek for the entire way, and contrary to it's name, it likely never gets dry.
Start out at the Trapper Creek Trailhead, hike 100 feet in, and turn right onto the Dry Creek Trail. Follow the creek, meandering in and out of large firs, Dogwood, and Bigleaf Maples. It is quintessential Pacific Northwest rainforest here; enjoy the mosses and the numerous shades of green before you. The trail winds in and around the creek floodplain, but sometimes climbs high above the creek on the canyon walls.
Continue as far as you want. Eventually the trail ends at the Big Hollow Trail. From here, you can either turn around, turn right to cross Dry Creek and meet with Forest Road 64 (Dry Creek Rd) or turn left to ascend into the Trapper Creek Wilderness.