Discover the enchanting mystery of Twin Lagoon. Nestled dramatically within towering karst limestone formations, the lagoon consists of two parts: the outer lagoon where boats dock, and the secret inner lagoon. To access the inner chamber, you must either swim through a small, natural rock archway during low tide or climb over a wooden ladder during high tide. This breathtaking, secluded spot offers a unique blend of warm and cool water layers, creating an otherworldly, must-see experience.