Take the ferry Memorial Day weekend through Columbus Day to this primitive island off the tip of the Door County peninsula in Lake Michigan. Stone buildings, built by a wealthy inventor who owned the island between 1910 and 1945, house exhibits.

Cars and even bikes are not allowed on the 912-acre island, making for an experience unlike any other Wisconsin state park. There are 10 miles of hiking trails, including a one-mile interpretive trail, a naturalist program, and 5,000 feet of beach.

Rock Island has 40 campsites, all of which are reservable exit DNR. Pit toilets, picnic tables, and fire rings are provided there is drinking water near the dock and boathouse. Firewood is for sale at $5.50 a rick. There are no carts or equipment for hauling camper supplies and equipment.

A Wisconsin State Park System vehicle admission sticker is required on all motor vehicles stopping in state parks, forests and recreation areas, please visit the VEHICLE ADMISSION STICKERS web page.