Grace Bay, Turks & Caicos

Grace Bay runs 12 kilometres along the northern shore of Providenciales in the Turks and Caicos Islands, with powdery white coral sand and water that cycles through every shade of blue imaginable — from pale aquamarine at the shore to deep cobalt at the reef edge. The barrier reef offshore keeps wave action gentle and the water consistently warm between 27–29°C year-round, making it as good for swimming as for simply standing and staring. It regularly appears atop Conde Nast Traveler and Travel + Leisure global rankings. Best visited November through June.