Tunnel Trail Campground

Reservations are available at Tunnel Trail Campground in Wilton, Wisconsin, which operates from May 1 through October 15 and provides electric and water hookups, showers, a dump station, and WiFi. The campground sits directly on the Elroy-Sparta State Trail, North America's first rails-to-trails conversion, making it a practical base for cyclists who want to roll out from their site. Large rigs should plan carefully: one reviewer noted tight corners that posed real difficulty for rigs 38 feet or longer.

Sites are fairly close together, and campers who have visited during lighter-traffic periods note that a full campground would feel noticeably crowded. The back sites are more wooded and offer a bit more separation. A creek runs through the middle of the property, and several reviewers mention kids playing in it. There's also a pool, a mini golf course, and a wooden play set on site. Water comes from a well, and as Alexander V. notes, "a filter may be wanted." Bathrooms are reported as clean and well maintained.

On weekends, Amish vendors reportedly arrive by horse and buggy to sell baked goods and candy, which adds an unexpected dimension to the campground experience. Pets are allowed. Cell service is noted as a consideration in at least one review, so campers who rely on connectivity may want to confirm coverage before arrival. Those looking for a different setup nearby can check out the Elroy Walk-In Campground on the Elroy-Sparta State Trail, which sits roughly ten miles southeast along the same trail corridor.