Apostle Islands National Lakeshore Located in Lake Superior, WI TRAVEL BASICS - CAMPING - LODGING ACTIVITIES - FACILITIES - FEES/PERMITS Sea Caves at Devils Island (NPS Photo) IN BRIEF Wisconsin's northernmost landscape juts out into Lake Superior as the scenic archipelago known as the Apostle Islands. The national lakeshore includes 21 islands and 12 miles of mainland Lake Superior shoreline, ...