We visited the Tunnel Trail Campground last week to take advantage of the Elroy / Sparta bike trail. The campground location is great and you can just ride out from your campsite and go either way for an enjoyable and easy bike ride to a tunnel on either side. My husband enjoyed the pool after our bike rides. The pool is their crowning glory, you can tell its well laid out and well kept. Lot's of different seating options and seemed many campers took advantage of it. As far as the grounds, we thought they could be kept up a little better. Its a beautiful setting but everything is overgrown with the wild pumpkin vines that are literally hiding some pine trees. Amish came in on Saturday to sell their baked goods. One very annoying issue was the barking howling dogs from the gun club across the street. Yipes! If we were to return to the area to ride the trail again, we would stay here.