AquaSafaris, founded by John and Carole Borden, offers charter yachts to the Caribbean, the Greek Isles, the Mediterranean and Charleston, too. A typical cost for a Caribbean yacht excursion for four on a small power yacht is, $132,000. A sailing excursion on a small ship runs around $125,000. In Charleston, the company offers sunset sails, Barrier Island barbeques, ecotours and pirate-themed adventures.