M/V Dolphin Queen is a Thai liveaboard dive boat operated by Similan Diving Safaris, running trips from Khao Lak to the Similan Islands, Koh Bon, Koh Tachai and Richelieu Rock. Spread over three decks, she offers 8 air-conditioned cabins with opening sea-view windows (double, twin and four-berth configurations on the main deck, plus two sea-view double cabins on the upper deck). The main deck holds a spacious dive platform and gearing-up area with dual Bauer Mariner II compressors and a large tank supply, while the upper deck has an open-air dining area and the sun deck offers hammocks and loungers for dolphin, manta ray and whale shark spotting between dives. Diving is run in small groups of about 4 guests per PADI guide, with all meals, snacks and basic dive gear included in the package price.