From shallow, sunlit reefs to current-washed pinnacles, wrecks, deep walls, caverns, and grottoes, Thailand has all the settings needed for a world-class dive destination. And that includes the marine life, which comes in an impressive array of types and sizes from tiny invertebrates to bus-sized whale sharks. These facts are not lost on the ever-growing number of visitors who are drawn to locations all across the expansive Gulf of Thailand and the eastern edge of the Andaman Sea. Here, they find a well-developed dive infrastructure that provides access to a wide range of sites within the country's extensive network of marine reserves. Ashore, all the experiences of one of Asia's most intriguing cultures await discovery.