Bathed by the waters of two oceans, Thailand's varied diving environments are home to colorful coral reefs and an impressive diversity of marine life. Live-aboard ships explore the offshore islands with their beautiful white-sand beaches and lush vegetation, and go beyond the Thai border to newly pioneered dive sites in Myanmar. A rich culture and well-developed infrastructure make this the most popular diving region in Southeast Asia. In This Guide: Detailed dive information to 76 sitesFull-color photos throughoutEasy-to-read maps of dive regionsGuide to marine lifeTravel logistics and topside attractions