Off the coast of the Bahama’s North Eleuthera lies Harbour Island, a tropical utopia of pastel-painted houses framed by lush bougainvillea, roosters running wild and pink-sand beaches with truly turquoise waters. With its well-heeled crowd and stylish shops, the Bahamian destination is unequivocally chic, and its charm is steeped in history and customs—like the nightly ritual of a sunset ‘Goombay Smash’ cocktail by the beach. In a place that celebrates tradition with such easy deference, it’s bi...