Never heard of the Caribbean Island of Mustique? Don’t worry, few have. The exclusive paradise, home to just 3000 people, is part of the St Vincent and the Grenadines island chain and is truly a playground for the ultra-wealthy.

Potential travelers can’t even purchase a flight to the island without confirmation of hotel or villa reservations. The no-fly zone and extremely heightened security guarantee complete and utter privacy. “Every island visitor is registered with our security team before arriving on the island by land, air or sea,” according to the country’s website, “whether staff, local islander or guest to ensure the security team know who is on the island at any one time.”

All these measures are particularly helpful when it comes to the island’s most famous visitors. Mustique has been a popular Caribbean vacation spot for the Royal Family for years. The Queen and Princess Margaret have each visited the island and it’s picturesque white-sand beaches and crystal clear waters on multiple occasions over the years.

The trend seems to be catching on. Prince William, Kate Middleton and their three children are reportedly enjoying some time off on the Windward Island for a second straight year. The timing seemingly lines up with Prince George’s sixth birthday.

The most popular spots on the island are Britannia Bay, an ideal locale for snorkeling, swimming or spotting a marine turtle or two. Endeavour Bay, located on the northern side of the island offers soft sands and spectacular waters highlighted by a reef teeming with underwater life. For a little nightlife action, there’s really only one place to stop – Basil’s Bar. After a US$6 million renovation, Mustique’s iconic bar is better than ever, serving up boat-fresh seafood and classic Caribbean drinks.