Phu Quoc Island: A Tropical Paradise Phu Quoc Island, off the coast of Cambodia but part of Vietnam, is renowned for its crystal clear waters and vibrant coral reefs. Snorkelers at Sao Beach or Long Beach can expect to see a variety of marine life, including small sharks, rays, and colorful schools of fish. For a more secluded experience, the An Thoi Islands to the south offer pristine waters and abundant sea life, perfect for...