High-end hotels are taking to the water, deploying luxury yachts to give guests a taste of the sailing life. In Indonesia, the 151-foot, five-cabin Alila Purnama (pictured; $54,000 a week for up to 10 people) joins Alila’s two terra-firma properties in Bali. The teak-and-rattan phinisi carries guests to neighboring islands for snorkeling and massages on deserted beaches. This winter, Soneva Resorts will launch Soneva in Aqua (from $4,375 a day for up to four people) in the Maldives—the sleek, two-cabin seaborne villa will come complete with a chef, dive master, spa therapist, and 24/7 butler, and will cruise to less-explored atolls and reefs. Also on the horizon: La Sultana Yacht (nine days from $7,545 per person), a sister to hotels in Marrakesh and Oualidia, Morocco. The former Soviet spy ship is getting a serious upgrade and will have seven James Bond–worthy Moorish-style rooms.