Thailand

Thailand’s Andaman Sea is home to the Similan and Surin Islands and Richelieu Rock — widely regarded as some of the best diving in Southeast Asia, with vibrant soft coral and a real shot at whale sharks and manta rays in season.

Best Time to Travel: November – April. Diving: Boat Diving. Unique Marine Life: Whale Sharks, Manta Rays, Leopard Sharks, Schooling Barracuda, Mandarin Fish. Level: All. Sea Temps: Average 84°F. Air Temps: Average 86°F. Accommodations: Liveaboard.

Thailand Aggressor

Thailand Aggressor cruises the Similan and Surin Islands and the famous Richelieu Rock, widely considered some of the best diving in the Andaman Sea. Expect vibrant soft coral, schooling barracuda, and — in season — a real chance at whale sharks and manta rays.

Onboard, the yacht offers comfortable staterooms and a relaxed pace suited to both new liveaboard divers and seasoned photographers chasing Richelieu Rock’s famous macro life.