The Elroy Sparta Bike Trail, North America's first rails-to-trails project, runs through the Tunnel Trail Campground. The campground is very nice, especially for tents and smaller campers and caters to bicyclists. We had a lot of privacy because it was early in the season and there were very few campers there, however, the sites are fairly close together and if the campground were full, it would have felt crowded. The owners are friendly and very accommodating. The pool looked awesome, but it was a bit too cool to swim when we were there. It's often difficult to find campgrounds near bike trails, which is what makes this campground so great! We rode from Norcross to Rockland with a stop in Sparta at the Market Tavern. We enjoyed the hot ham and cheese sandwich, fried mushrooms, and excellent brown ale. Really great ride with lots of wildflowers, cow farms and tunnels to bike through!