Cooper Jack Bay, Turks and Caicos offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Cooper Jack Bay, Caicos Islands, Turks and Caicos, is known for its proximity to the stunning Grace Bay Beach and the vibrant coral reefs of Princess Alexandra National Park. The best time to travel to Cooper Jack Bay, Turks and Caicos, is from December to April, with average air temperatures around 80°F (27°C) and water temperatures near 78°F (26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!