If your trip to Retreat is all locked in but your travel itinerary is a bit on the empty side, we can give you a few hints and tips.St. Nicholas Abbey and Animal Flower Cave are significant attractions that everybody should make time to visit. Plan a route and spend an hour or so experiencing each one.Stop by Mullins Beach. It's one sight you'll usually find on many visitors' must-do lists. If you still have space on your travel schedule, Barbados Wildlife Reserve and Heywoods Beach will keep you occupied as well.