Warren Dunes State Park is a 1,952-acre (7.90 km2) Michigan state park, located along the eastern shore of Lake Michigan in Berrien County. The park's large sand dunes and lakeshore beaches make it one of the most popular of Michigan’s state parks with an average of about one million visitors annually. Large sand dunes are found throughout the park. Among the park's dunes are Mt. Fuller, Pikes Peak, and Mt. Edwards, with the most significant being Tower Hill, the highest point in the park, which stands 240 feet (73 meters) above the Lake Michigan. This dune is the one that is most visible to visitors, many of whom delight in scrambling up its slopes and rushing back down again. Easy access to the dunes make it a popular location to practice the sport of sandboarding. The dunes and beach area was preserved by a local businessman, Edward K. Warren, who originally purchased the site as a favor to a friend who had encountered significant financial difficulties. By 1930, the Warren Dunes area had been taken over as a state park.