Swap spots are first come first serve at the Kettle Moraine Bowling alley in Slinger off of HWY 60. If you want a location google the intersection of STH 175 and STH 60 in Slinger, WI. The swap will be in the southeast quadrant from the intersection. It is the whole parking lot of the Kettle Moraine Bowling alley. Swap spots consisting of two parking stalls cost 20 bucks each (Not sure about this year, but that was the price from years past). Get there early so you can be assured of getting a spot. In years past people usually start lining up on STH 60 to get into the bowling alley for their spots at about 6AM.