This four-acre enclave three miles offshore from San Pedro, Belize has six one- and two-bedroom beachfront villas, each with its own private dock. But Casa Ventanas, the resort’s secluded over-water bungalow, is our pick for downtime a deux. Rates include butler service, a customized menu of three meals daily, and plenty of bragging rights. Feeling flush? Rent the entire spread for you and 17 of your closest friends from $13,500 a night.