The Dominican Republic’s ‘cayos’ – or islands – live up to their Robinson Crusoe reputation, and Saona is no exception. Marooned off the coast of Bayahibe, this palm-fringed isle was once the backdrop for a Bounty ad. With white sands, coral gardens and giant red starfish, it’s certainly a taste of paradise. It’s got national park credentials, too. Behind the beach are palm-filled gardens with tropical birds – and butterflies that are almost as big.