Best season: Late May to mid-October.
Duckabush Trail: A 21.1-mile backpack from Forest Road 2510 to Marmot Lake.
Difficulty: Moderately strenuous.
Elevation gain: 5,000 feet.
Maximum elevation: 4,300 feet (Marmot Lake).
Finding the trailhead: From Brinnon, drive north on U.S. Highway 101 to milepost 310. Turn west on Duckabush Road (Forest Road 2510) and drive 6 miles to the marked trailhead.
Fees: Backcountry permits are $5 a party, plus $2 a night per person older than 16.
Hike details: "Hiking Olympic National Park," by Erik Molvar.
Attractions outside the park: These include the fishing villages of the Strait of Juan de Fuca, the Dungeness Spit, Port Townsend, Hood Canal and Lake Cushman. Check with the Port Angeles Visitor Center, 121 E. Railroad Ave., Port Angeles, WA 98362; 1-360-425-2363.
Helping hands: To arrange a car shuttle for backpacking trips, call Olympic Tours and Charters, 1-360-452-3858. For a guide on the park's glacier-covered peaks, call Olympic Mountaineering, 1-360-452-0240. For a guide on the trails, call Olympic Mountain Outdoors, 1-360-437-7867.
More information: Olympic National Park, 3002 Mt. Angeles Road, Port Angeles, WA 98362; 1-360-452-0330; www.nps.gov/olym. Olympic National Forest and Park, Hood Canal Office, 150 N. Lake Cushman Road, Hoodsport, WA 98548; 360-877-5254.
Contributing: Newhouse News Service