The Apostle Islands National Lakeshore is a U.S.

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 national lakeshore consisting of 21 islands (Apostle Islands

Apostle Islands

The Apostle Islands are a group of 22 islands in Lake Superior, off the Bayfield Peninsula in northern Wisconsin. The majority of the islands are located in Ashland County—only Sand, York, Eagle, and Raspberry Islands are located in Bayfield County...

) and shoreline encompassing 69,372 acre

Acre

The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. The most commonly used acres today are the international acre and, in the United States, the survey acre. The most common use of the acre is to measure tracts of land.The acre is related...

s (281 km²) on the northern tip of Wisconsin

Wisconsin

Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...

 on the shore of Lake Superior

Lake Superior

Lake Superior is the largest of the five traditionally-demarcated Great Lakes of North America. It is bounded to the north by the Canadian province of Ontario and the U.S. state of Minnesota, and to the south by the U.S. states of Wisconsin and Michigan. It is the largest freshwater lake in the...

.
It is known for its collection of historic lighthouses, sandstone sea caves, a few old growth remnant forests, and natural animal habitats.
The Apostle Islands National Lakeshore is located off Wisconsin’s peninsula in Lake Superior, the “largest, cleanest, and coldest of the Great Lakes.” The lakeshore comprises beaches, cliffs, water, and 21 islands.