Arden considered that for a few moments. "Boat," she said, thoughtfully. "There are lakes all around the Triangle and sometimes I saw them. Not a sailboat, but something like a trawler or a pontoon. Maybe hauling those inflatable rafts or whatever. Have it anchor a couple hundred yards out from the shore, so people can swim or chill on deck or the inflatable thingies. Probably not too expensive to rent for a few hours."