Smiling Seahorse specializes in diving Thailand’s North Andaman and into Myanmar’s Mergui Archipelago, where macro lovers and pelagic fans both find their match

Thailand Aggressor sails to Similan and Surin Islands, where whale sharks, leopard sharks, and sea fans fill the warm waters of the Andaman Sea

With routes to Richelieu Rock and Koh Bon, Deep Andaman Queen delivers top-tier Andaman Sea diving in spacious, well-equipped comfort

Compact and friendly, Dolphin Queen explores Thailand’s Similan and Surin Islands, where leopard sharks, nudibranchs, and giant trevallies roam thriving reefs

Dive Thailand’s Andaman Sea with Gentle Giant liveaboard—6-night, 22-dive cruises to Similan Islands, Richelieu Rock, Hin Daeng & more. Small group comfort, top sites, limited departures

UNMEE 4 offers diving from Khao Lak & Phuket...

Diving the Similan Islands and Richelieu Rock, Thailand Master combines tradition with comfort, offering sightings of whale sharks, manta rays, and colorful reef systems

A restored Chinese sailing vessel, The Junk is full of charm and history. Dive Richelieu Rock and the Similan Islands while living aboard a piece of maritime heritage

With its relaxed, eco-conscious vibe, Merdeka 3 combines diving and wellness while exploring Thailand’s southern Similan sites. Sunset yoga and whale shark sightings both make the schedule

Similan Islands and Richelieu Rock headline Pawara’s itinerary, with manta rays, whale sharks, and colorful nudibranchs dotting the vibrant reefscapes

Sawasdee FaSai combines comfort with exploration, navigating the Similan and Surin Islands where encounters with mantas, whale sharks, and leopard sharks are frequent

Bavaria liveaboard offers dive safaris to Thailand’s north and south Andaman hotspots. Highlights include Richelieu Rock, Koh Tachai, and encounters with whale sharks and ornate ghost pipefish

Operating in Thailand’s northern Andaman Sea, Manta Queen 3 brings divers to Similan and Surin sites like Koh Bon and Richelieu Rock, where whale sharks and harlequin shrimp can both show up

Marco Polo ventures into Thailand’s southern Andaman Sea, covering dive sites around Koh Haa and Hin Daeng. Great for both reef cruising and pelagic spotting

With a max of 10 guests, Giamani offers a cozy way to explore Thailand’s Similan and Surin Islands. Expect reef sharks, leopard sharks, and macro life in well-paced dive itineraries

Explore Thailand’s top dive sites aboard the Camic liveaboard, cruising Similan and Surin Islands, including Richelieu Rock. Enjoy small-group diving, Nitrox, eco-friendly amenities, and air-conditioned cabins

Explore Thailand’s top dive sites aboard the Camic liveaboard, cruising Similan and Surin Islands, including Richelieu Rock. Enjoy small-group diving, Nitrox, eco-friendly amenities, and air-conditioned cabins

Explore Thailand’s top dive sites aboard the Camic liveaboard, cruising Similan and Surin Islands, including Richelieu Rock. Enjoy small-group diving, Nitrox, eco-friendly amenities, and air-conditioned cabins

Seatopia liveaboard explores Thailand’s Similan and Surin Islands. Dive vibrant reefs, encounter whale sharks and leopard sharks, and enjoy small-group trips for a personalized experience.

Manta Queen 2 operates 3-night trips through the North Andaman region of Thailand, offering a compact schedule for divers who want to explore the Similan and Surin Marine Parks with limite...