Gran Bahia Principe, Mexico offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Gran Bahia Principe, Quintana Roo, Mexico, is known for its luxurious all-inclusive resorts and proximity to the ancient Mayan ruins of Tulum and the vibrant marine life of the Mesoamerican Barrier Reef. The best time to travel to Gran Bahia Principe, Mexico, is between December and April, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 78-82°F (26-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!