Things to Do Park Itineraries 10 Best Things to Do on an Olympic National Park Vacation Kids run on the Hall of Mosses Trail in Olympic National Park’s Hoh Rain Forest Kids run on the Hall of Mosses Trail in Olympic National Park's Hoh Rain Forest Under construction 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: Justin Bailie