MV Colona VI offers dive safaris to Thailand's top dive spots in the Andaman Sea, including the famous Similan & Surin Islands national parks, Koh Bon, Richelieu Rock (renowned for whaleshark and manta ray sightings) to the north of Phuket, and Hin Daeng & Hin Muang to the south.

The MV Mermaid II is a 32 metre, double engined steel motor yacht, and is one of the most comfortable dive boats in Thailand. She cruises to the Similan and Surin Islands National Parks, Koh Tachai, Koh Bon and Richelieu Rock to the north of Phuket, and to Hin Daeng, Hin Muang, Koh Phi Phi and Koh Haa to the south.

Scuba Adventure is one of the original, classic liveaboards cruising the warm waters of the Andaman Sea, visiting the world class dive sites of the Similan National park and the Surin National Park, including Koh Bon, Koh Tachai and the world famous Richelieu Rock.

MV Scuba Cat is a 30m steel catamaran hulled boat and is the largest diving vessel in Thailand. A large diving platform allows for safe and convenient diving. Accommodation is in ten spacious air-conditioned cabins.

The Junk is 33 meters in length with a maximum of 18 passengers, crew of 10, 6 cabins, 8 hot water showers with toilet.

A new and welcome addition to Symbiosis' portfolio of dive boats in Thailand, the Philkade offers a deluxe option for diving the dive sites of the Andaman Sea, including the Similan & Surin Islands National Parks, Koh Bon, Koh Tachai and Richelieu Rock, famous for whaleshark and manta ray sightings.

SY Siren is a Traditional style Buginese schooner, known as a "phinisi", from Indonesia that migrates north to Thailand's Andaman Sea during the North East Monsoon. With her she brings a bit of romance and a chance to dive the best of Thailand under sail.

MV Giamani offers dive cruises off Thailand's Andaman Sea coast to the renowned dive spots around the Similans, Surin Islands & Richelieu Rock, as well as further south to Hin Daeng & Hin Muang.