Similan Liveaboard

Book your Similan liveaboard direct with Big Blue

We are proud to be the operators of the new look MV Blue Dolphin Similan Liveaboard. Now you can experience comfort and luxury for an incredible price!

Our 2023 – 2024 season schedule is already getting plenty of bookings so be sure to secure your spot now.

Our Similan Liveaboard the Blue Dolphin

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Much of the best marine life is down deeper. Do you want to see the most colourful corals, or simply have more time surrounded by Similan’s stunning Marnie life? Nitrox extends your bottom times making this possible.

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The MV Blue Dolphin Liveaboard is our boat, so we answer all questions quickly and accurately. We can also advise you on hotels, transport or any of your holiday plans.

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Are you an inexperienced diver, a photographer or a dive veteran?  We guarantee to find the perfect dive group for you. Maximum 4 divers per guide.

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The MV Blue Dolphin is a mid-range Similan Liveaboard at the top of its class. If you have any questions about the MV Blue Dolphin, just fire us a message.

Camera area on our Similan Liveaboard

Already booked on the MV Blue Dolphin? Save time on departure day with our Similan liveaboard Check In


Big Blue Diving are the operators of the MV Blue Dolphin

Our Similan Liveaboard trips are 4 days and 4 nights. The perfect length of time to see all the best dive sites that the Similan islands have to offer.

The Boat

At 27 meters in length, the MV Blue Dolphin with her steel hull construction makes for a safe and smooth ride throughout your trip.

Holding 16 guests in 7 air-conditioned cabins with both ensuite and shared bathrooms.

The MV Blue Dolphin can offer an amazing time on board to suit all budgets.

She has spacious relaxation areas, a large diving deck and a dedicated camera area. Enjoy a wide range of Asian and dishes from all over the world.

Our Standards

Safety is highest priority on our Similan Liveaboard. MV Blue Dolphin Liveaboard staff have years of experience diving in the area and up to date first aid and O2 certifications.

All our equipment receives regular maintenance checks and is serviced by our in house technicians.


Upper Deck
Master Cabin
king size bed cabin

Offers en-suite facilities with hot showers, a king-size double bed.
 (Large single bed available for single occupancy upon request).

Enjoy luxurious comfort with views of the islands, a small desk area, clothes area and a safe.

Lower Deck
Master Cabin
double bed under bunk for family share

Located on the starboard side, offering en-suite facilities with hot showers. Our smart bed system allows the choice of a double bed or twin bunks.

Also features a small desk area, clothes storage and two safes.

Lower Deck
Double or Twin Cabin
2 bunk bed setup.

With our smart bed system for either double bed or twin bunks, with shared bathrooms. Four shared bathrooms are located on the lower deck.

Also included a small desk area, clothes storage and two safes.

Lower Deck
Quad Cabin
Quad cabin on our Similan Liveaboard

Ideal for groups looking to share or single travellers on a tighter budget. Each bunk has a storage area, private shelf, reading light, safe, with shared bathrooms.

Four shared bathrooms are located on the lower deck.

Diving on The MV Blue Dolphin Similan Liveaboard


Similan Liveaboards allow you to do the most amount of dives in the shortest possible time. Wake up to a pristine empty beach outside your window. Spend your day at world class dive sites. Enjoy long surface intervals filled with fun and relaxation. Finish the day dining under the stars. See the full itinerary and dive sites of our Similan Islands Liveaboard; The MV Blue Dolphin.

Rat ( the Chef) Smiling at side of boat

What makes a Similan liveaboard such great value is that food and accommodation are included. Food on the MV Blue Dolphin is delicious and plentiful. Our two cooks, Anne and Rat, are probably the kindest people on the boat. They take pride in their work and are more than happy accommodate any food requirements or preferences.

The MV Blue Dolphin features indoor and outdoor eating areas. The excellent food prepared by our experienced chefs will ensure your meals are as good as your dives. Enjoy a light breakfast of cereal, fruit and toast before the first dive. The bigger buffet breakfast will be waiting for you when you return. A buffet lunch is served after dive two, a tasty snack after dive three and a variety of dishes served for dinner after dive four.

Diver in water by dinghy

Big Blue has been offering the highest standards of diving in Thailand since 1991, and the MV Blue Dolphin Liveaboard only furthers this reputation for quality service.
Our multi-lingual staff on board are able to speak English, French, German, Thai and Japanese. If you have language requirements beyond these, we can accommodate any requests.

All of our staff have years of experience in the Similans and even longer track records for keeping divers safe and happy season after season. Dive groups are a maximum of 4 people (unless larger groups request to dive together). Your gear is washed and your tanks are filled for you by our highly trained staff. The only thing you have to do on board the MV Blue Dolphin is to dive and relax.


The MV Blue Dolphin’s large dive deck gives you plenty of room to set up. Standard and DIN tanks are available. Our on board EanX system allows Nitrox certified divers to extend their bottom times with enriched air. For those not Nitrox certified, we offer Nitrox certification on board. CCR and sidemount divers are well catered for, however you’re set up. All staff and crew are well trained in handling equipment and understand the different styles of diving. We can even have tanks waiting for you in the dinghies if you like.

The MV Blue Dolphin Liveaboard is “well equipped for photographers”.  We have a custom designed camera table and set up area, large fresh water tanks, and a dedicated charging area.


With a maximum of 4 divers per group, and up to 16 guests, there may be 5 to 7 dive staff on board the MV Blue Dolphin Liveaboard.
Other than the Captain, the most important job on The MV Blue Dolphin Liveaboard is that of the trip leader. Big Blue Diving Khao Lak have two full time trip leaders. They are responsible for the schedule, organizing the dive groups, communication with the Thai crew and generally making sure you are having a great time. Therefore, its good to know that during your stay on the MV Blue Dolphin Liveabaord, you will be in safe hands…

MV HAllelujah Tour Leader Ric Parker

Ric Parker, from Blackpool, England has been running Myanmar and Similan Liveaboards since 2005, working on various vessels before joining Big Blue in 2009. As well as extensive knowledge of the Similan Islands National Park and Richelieu Rock, he is also considered one of the leading authorities on diving the more remote Mergui Archipelago in Myanmar.

One of Ric’s main passions is diving with Giant manta rays which are encountered at Koh Bon and Koh Tachai each season between January and April. As an active volunteer and manager of the Marine Megafauna Foundation’s Manta Ray Program, he has plenty of interesting facts about local Manta populations and regularly holds Manta presentations and photographic Manta identification workshops on board MV Blue Dolphin.

MV Hallelujah Diving Trip Leader Steve Boot

Steve Boot, from Stoke-on-Trent England has been with Big Blue since 2015, before coming trip leader in 2018. Steve left Stoke-on-Trent for Cornwall and the Isles of Scilly when he was 17, where his love for the ocean truly begun. Being on, in or under the water is where he is happiest. A keen conservationist, Steve is passionate about protecting the oceans and all its inhabitants, from the giant manta rays to the coral reefs.

Steve loves nothing more than being in the water and observing the underwater world and all it has to offer. Always open to talk about what you may have seen, what is happening in Similan and Surin national parks and share his knowledge of the area in particular the dive sites.


Four days on a boat can seem like a lot to commit to, especially if its your first time on a diving liveaboard. Rest assured that there is very little else that you will need to bring with you. But for that extra piece of mind, take a look at some helpful hints to help you plan your diving adventure.


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MV Blue Dolphin Liveaboard rates are based on double occupancy. If we need to combine solo travellers in standard cabins, we will only do same sex pairings for reasons of privacy. If you require a personal cabin get in touch with us for great single occupancy offers.

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Every person is required to pay marine park fees in Thai Baht to enter the Similan Islands. For divers this is 2,300฿ per person.
Inquire about fees for Thai nationals and non divers.

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If you require rental equipment then please let us know you sizes. A full set of rental equipment is available for 600฿ per day, or free with any diving courses. You can order new equipment from our online store and have it ready upon your arrival.


With the exception of alcohol, souvenirs and tips, everything else on the MV Blue Dolphin is included.

Dining area on our Similan liveaboard