Our lovely boat, MV Thai Sea

MV Thai Sea offers its happy guests a smooth and safe journey in the Surin and Similan National Marine Parks in Thailand as well as in the Mergui Archipelago in Burma or Myanmar. Above all, with only 12 divers on board, you will feel as if you have chartered the boat for yourself.

The boat has an open and comfortable lounge area where meals are served buffet style and we promise you will never go hungry on Thai Sea. The sun deck area can be partially covered so you can choose between relaxing in the sun or go for the more chilled covered area for your leisure. On the technical deck, the equipment platform offers an individual place for each diver with plenty of space for your scuba gear.

We dive in individual groups so it is never crowded on the deck when we gear up.

Our photo area with a charging station and rinsing buckets for electronic equipment is conveniently placed right before the dive platform so you can grab you equipment on the way.

Thai Sea is 5m wide so we can comfortably all line up next to each other and still have plenty of space even in scuba gear.  2 diver friendly ladders easy to climb in full scuba make it the perfect dive platform. If you need a hand, there are always lots of them around when we are diving. The platform has 2 fresh water rinsing showers and quick rinse buckets for just out of the water and “other than electronics” to keep your electronics salt free.


Thai Sea offers one Master Cabin with double bed and scenic view both forward to the bow and sideways.
5 bunk bed cabins spacious enough for the duration of your stay. ONE bunk can be turned into a double bed. Please specify when you make reservations or inquiries.
All cabins are well ventilated and equipped with individual fans for each bed. In 4 of the bunk bed cabins the roof have a huge hatch you can keep open and the fresh sea air vil naturally ventilate your cabin. The last bunk bed cabin have two sided windows and so does the Master Cabin
All cabins come without aircon.
Bring minimum of luggage. You do not need much on a boat in the tropics and leaving some luggage on land in Thailand keeps your luggage free of the sea air and leaves it fresh for your return. Leave it at your hotel or bring it to our office in Ranong, Thailand for safekeeping during your liveaboard cruise.
Thai Sea have plenty of storage room if you chose to bring more luggage on the safari.
Toilets (3) and shower rooms (2) (and the 2 open air showers) are shared.
Come be our guest on Thai Sea and enjoy a personalized service, just like at home. Always full service from our experienced and attentive team.


We are french so you will never be disappointed with our cuisine onboard. Our chef will prepare 3 delicious meals per day for you to enjoy this. These consist of a hearty European/American breakfast, and a mix and twist of Thai/Asian influenced dishes and French favorites for lunch and dinner. Plenty of fresh fruit and salads are always on the menu, with an extra tasty snack in the afternoon. Don’t miss our famous BBQ night with plenty of delicious grilled meals. Our chef can prepare special diet dishes on request.

We eat our meals on the main deck living area while enjoying the spectacular beauty of your surroundings.


With its 5.5 meters wide and 20 meters long on 2 decks, this attractive boat in traditional wooden style welcomes you for a perfect and wonderful adventure. Powered by a 6-cylinders Hino engine (260 HP), Thai Sea will carry you to the wildest and most exclusive dive sites of the Andaman Sea and probably on the planet at a 7 knots cruising speed.

In addition, Thai Sea carries 3.000 Liters of diesel and 6.000 Liters of fresh water large enough to cruise to Burma Banks on the west side or Black Rock in the north of Mergui Archipelago in Burma. Therefore, you won’t miss any of the best dive sites in the archipelago.

With one generator delivering 20 KVH and 2 dynamos, she produces continuous 220V power electric onboard (EU 2 pins plugs).

We love diving and we are divers first but for instance fun is part of this adventure with a 3 seats kayak, a Stand-Up paddle for the most skilled swingers and a 3,20m hypalon dinghi with Yamaha outboard (15HP) to let you explore the beaches of the deserted islands on our itineraries.


Safety is our motto and we take it very seriously. Firstly, all our equipment is fully serviced yearly and regularly if needed. Secondly, our diving equipment comes from reputable brands such SCUBAPRO or BAUER for our 2 compressors.

Thirdly, the boat’s equipment includes GPS and Navionics navigation system with AIS, 2 VHF radios with emergency system integrating GPS sending location to all around, a SOLAS liferaft yearly serviced for 25 people, Thai Marine Office approved Life jackets, bilge pumps alarms, emergency lights, 5 fire extinguishers and fire alarm in the compressors room and cooking area, First Aid Kit, 20 B50 tanks of Oxygen, continuous and on-demand 02 feed.

And moreover, our instructors are trained and certified for EFR, CPR and 02 providing.