Rock Island State Park

Reached only by two ferries (to Washington Island, then a passenger ferry to Rock Island itself), this car-free park preserves the historic 1837 Pottawatomie Lighthouse and the stone boathouse of a former estate. All 40 campsites - including two group sites - are primitive and walk-in, with fire rings and vault toilets; drinking water is available near the dock and boathouse. Small carts are permitted on the ferry for hauling gear.

Wisconsin DNR statewide camping system: a vehicle admission sticker is required at every state park or forest entrance, including for registered campers - $28/year for Wisconsin residents ($13/year age 65+) or $50/year for non-residents, or $13/day resident / $16/day non-resident. Nightly campsite rates vary by electricity, amenities, location, site type, day of week and season, and are shown when you select a specific site during booking; non-resident campers pay a flat $15/night surcharge on top of the site's own rate. A $9.30 reservation fee applies per booking, plus a $10 cancellation fee or $6 change fee if plans change. Pets are allowed at this campground on a leash no longer than 8 feet at all times, per Wisconsin State Park System's statewide pet policy; owners must clean up and properly dispose of pet waste.