Antigua and Barbuda
Barbuda is blissfully undeveloped. The island is famous for its bird population, and is a choice spot for birders. To see the island on a day-trip from Antigua sign up for a tour with the Barbuda Express (they also offer island day trips for people staying in Barbuda as well) and they operate the daily catamaran service between the sister islands. If you’re staying on the island, know that most of the independent restaurants in Barbuda require 24-hour advance reservations, because they only buy enough food for confirmed guests.