Twanoh State Park State Park is located right on the shoreline of the Hood Canal and features one of the warmest saltwater beaches in the state of Washington (so don't forget your bathing suit). In fact the 192-acre marine camping park has 3,167 feet of shoreline to explore. Twanoh campground has 47 campsites and 22 have full hookups (maximum size 35 feet). There are 25 tent campsites here. Each campsite has a table, fire ring and spectacular old growth trees.