Similan | Surin islands

Considered the best diving in Thailand, the Similan islands on the west coast, 60 nautical miles from Phuket, offer a range of different underwater landscapes, coral, and marine life.

One of the top scuba locations in the world, the Similan Islands by dive liveaboard is an excellent way for new and seasoned divers alike to either start or continue their scuba diving journey.

With the chance of amazing encounters, both large and small. The rocky underwater landscapes of the south, with boulders, huge coral fans, and the possibility of shark sitings, to the beautiful coral gardens of the northern Similan islands, teeming with reef fish and macro opportunities. Diving from The Phinisi is a great way to see it all.

The Best Dive Liveaboard in Thailand

Highly experienced dive and boat crew, fantastic accommodations, amazing inclusive food and just sheer awesomeness means the Phinisi gets our vote for the best liveaboard yacht in Thailand.

The Phinisi dive liveaboard | Dive the Similan islands | Let Infinite Blue Dive Travel take care of your vegan | plant-based diver dietary needs.The Liveaboard

The Phinisi has led a remarkable life as a liveaboard diving vessel venturing to many of the best diving destinations on the planet, including Indonesia, Maldives and the Andaman Islands.

Now she has returned to the routes of her early years, the Similan and Andaman islands. The Phinisi offers a luxury option to explore the west coast of Thailand, purpose-built and staffed by an incredibly experienced crew. We have dived from her numerous times in different locations and highly recommend it.

The Phinisi Liveaboard Cabin | Infinite Blue Dive TravelAccommodation

The phinisi accommodates 18 divers in flexible, air-conditioned, en suite cabins. All have hot/cold showers, plenty of storage space and are beautifully fitted out. Mattresses and pillows are comfy, and linens are high quality.

The adaptable cabin layout makes The Phinisi great for groups, half and full charters.

Khun Ked the amazing Phinisi Chef | Infinite Blue Dive Travel Food Onboard

Superb cuisine is pretty much equal to great diving on a scuba trip, and The Phinisi offers it in spades. A fantastic selection of primarily Thai-based meals are prepared fresh for you by the highly talented Khun Ked. The varied, high-quality vegan and plant-based options from the Phinisi kitchen make this liveaboard a firm ‘must’ on your up-and-coming dive holiday plan. Infinite Blue works closely with the crew to ensure your vegan | plant-based needs are well cared for.

Dive destination map | Infinite Blue Dive TravelDive Itineraries

Choosing The Phinisi as your next dive liveaboard offers remarkable flexibility with a range of fantastic scuba itineraries.

Best of Thailand on The Phinisi

Why not take the plunge? Dive at all the best dive sites in Thailand, from southern Hin Daeng and Hin Muang, moving up to Koh Phi Phi, King Cruiser, and Shark Point. Through the best of the Similans and onward to Koh Bon, Koh Tachai, the Surin Marine Park and Richelieu Rock. One of our favourite dive trips!

The Phinisi Facilities

  • Camera Station
  • Library
  • Air Conditioned saloon
  • Aircon Cabins
  • Sun Deck
  • Indoor Saloon
  • Warm Water Showers
  • Outdoor Dining
  • Charging stations
  • En-Suite bathrooms
  • Non-Smoking Rooms
  • Leisure Deck
  • Audio & video entertainment
  • Separate Rinse for u/w Camera
  • Non-Diver friendly

Trip Exclusions

Please note the following fees will be payable on board The Phinisi: Equipment Rental (if any), PADI courses (if any), and Marine Park | Port fee.

Don’t hesitate to contact us for exact details, as the above charges will alter depending on the dive cruise.


  • Light breakfast followed by a briefing and Dive one.
  • Full breakfast, relaxation followed by briefing and dive two,
  • Lunch, relaxation followed by briefing and dive three.
  • Dinner will be served either after the sunset dive or before the night dive.
  • Days one and seven are reserved for embarkation and disembarkation, three dives will be scheduled for the final day to allow plenty of time to off-gas.

Four dives around the more southern parts of the Similan Island chain, these could include, Honeymoon Bay, Sharkfin Reef, Boulder city.

Moving north, your four dives could include sites such as Elephant Head Rock, Elephant Head Pinnacle, Breakfast bend and Koh Bon.

Looking for Pelagics in Koh Bon and Koh Tachai.  Two of the most famous dive sites in Thailand they are both renowned for sitings of Manta Ray, Whale Shark and Leopard Sharks. Late in the season Koh Bon can be truly amazing, at least one of us here has had their best dive ever drifting from Koh Bon pinnacle to the point surrounded in Manta Ray.

Four dives around the less visited Surin Islands and the world famous Richilieu Rock, discovered by Jacque Cousteau and considered a Whale Shark magnet in the Andaman Sea, perhaps due to the horseshoe shape of the dive site. Not to be missed.

The dive itinerary is flexible and will depend on the weather and also your dive interests. There are three wrecks around the Khao Lak area which are all worthy dives, the most famous being the Boonsong wreck, which is surrounded with schools of fish, has great macro and also has the odd Leopard or Whale shark visiting.

After breakfast on the morning of day seven, disembark at Tap Lamu, super happy and a few kilos heavier.

Dive Packages

Trip Repeater Discount Available!
from $20-500 USDper person
  • 5 percent discount off full price trips for repeating guests from any other liveaboard trip in the Masterdiver's fleet.
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5D|4N Similan and Surin islands
from $1240 USDper person
  • Twin share cabin. Quad share also available on request.
  • Full board. Western style breakfast, lunch and dinner delicious Thai food.
  • 14 dives.
  • The fourth dive of the day could be either a sunset dive or a night dive.
  • Transfers.
Book Now
7D|6N Similan and Surin Islands
from $1860 USDper person
11D|10N Similan and Surin islands
from $3100 USDper person

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