Musha Cay
Bahamas

Owned by Blockbuster Video founder John Melk, this 150-acre tropical paradise is called the “world’s most luxurious private-island resort.” Guests are greeted with Champagne at the dock and provided with a complimentary golf cart. Maximum 24 guests, $24,750 per day. www.mushacay.com

Cayo Espanto
Belize

Located just off the coast of Belize, this four-acre refuge has only five villas. Each guest is pampered by a personal houseman, and a team of private chefs will create a personalized daily menu based on your preferences. $10,000 per night. www.aprivate­island.com

Necker Island
British Virgin
Islands

This 74-acre retreat provides the quirky amenities one would expect from its owner, Sir Richard Branson: a 10-bedroom mansion, three Bali villas, a helicopter pad, a floating sushi bar, and the Bali Leha spa, built into a cliff. $20,000 to $42,000 a day. www.necker.com

Guana Island
British Virgin
Islands

Quakers once raised cotton on this 850-acre haven that offers tennis courts, seven beaches, and “the only wildlife sanctuary in the world with a cocktail hour.” Price includes a beach barbecue with a Caribbean band. $12,500 to $21,500 per night. www.guana.com

Dhoni Mighili
Maldives

Visitors don’t stay in villas or huts but in dhonis (traditional, hand-built, 65-foot sailboats), each including its own beach bungalow with an outdoor bathroom and waterfall showers. A bar is available 24 hours, as is your thakuru, or personal Maldivian butler. $8,000 to $20,000 per night. www.dhonimighili.com

Turtle Island
Fiji

The 500-acre oasis boasts 14 beaches — the white, sandy kind. Guests stay in bures, thatched cottages built by Fijian craftsmen. It’s also known as the location for the wedding of Jessica Simpson and what’s-his-name. $275,000 per week. www.turtlefiji.com