Explore a rugged, isolated island, far from the sights and sounds of civilization. Surrounded by Lake Superior, Isle Royale National Park in Michigan offers unparalleled solitude and adventures for backpackers, hikers, boaters, kayakers, canoeists and scuba divers. The autumn colors are pretty amazing there right now, but you only have a couple more weeks to see them. The park closes every year from November 1-April 15 because of extreme weather conditions and for visitor safety. Photo by Jacob W. Frank, National Park Service.