Grand Isle State Park is located on South Hero Island in Lake Champlain. The Island, also known as Grand Isle, is 14 miles long and over 3 miles wide, making it the largest in Lake Champlain. It contains the towns Grand Isle (on the northern half) and South Hero (on the southern half). The North and South Hero Islands are named in honor of early pioneering Vermonters who served in the American Revolution. The Park has the most visited campground in the state park system and has 117 tent/trailer sites, 36 lean-to sites, and 4 cabins. Outdoor activities are plentiful and include boating, fishing, water sports, swimming, hiking, biking and wildlife viewing.