The Dungeness National Wildlife Refuge is located near the town of Sequim in Clallam County in the U.S. state of Washington, on the Strait of Juan de Fuca. The refuge is composed of 772 acres (312 ha) which include Dungeness Spit, Graveyard Spit, and portions of Dungeness Bay and Harbor. Dungeness Spit is one of the world's longest natural sand spits, 5.5 miles (8.9 km) long and very narrow. A lighthouse, the New Dungeness Light, built in 1857, is located near the end of the spit. Access to Dungeness Spit is through a Clallam County Park which has hiking trails, picnic areas, and a campground.