Road Trips Gateway Towns Basecamp in Sequim, Washington Hike America’s longest natural sand spit is in the Dungeness National Wildlife Refuge Hike America’s longest natural sand spit is in the Dungeness National Wildlife Refuge Share this Facebook Icon Twitter Icon Email Icon Join Olympic National Park Trips Create a personalized feed and bookmark your favorites. Join for free Already have an account? Sign In Join Olympic National Park Trips Create a personalized feed and bookmark your favorites. Join for free Already have an account? Sign In Photo: Getty Images