Isle Royale National Park

America’s least-visited — and most rewarding — national park is a remote Lake Superior archipelago accessible only by ferry or floatplane from Copper Harbor or Houghton. This 45-mile-long wilderness island offers 165 miles of trails, pristine inland lakes for kayaking and canoeing, world-class scuba diving on shipwrecks, and intimate wildlife encounters with wolves and moose. Dark skies and zero cell service make it a true wilderness escape.