Where: Isles of Scilly
The Royal Connection: As a boy, William vacationed on these islands off the southern tip of Great Britain. Plus, they're only a short trip from London, making for a convenient mini-moon destination should the couple want to wait until the wedding hubbub has died down to take a longer vacation.
If You Go: This collection of islands is definitely low-key, and accommodations are the same. We'd choose one of the brand new cottage suites at the Island Hotel on Tresco. During their visit, guests can spend the day on the beach, go horseback riding, stroll the tropical Abbey Gardens, or take a day trip to the nearby islands of Bryher or St. Mary's. Cottage suites from £275 per person, per night.