Diving liveaboard in Thailand and Myanmar
  • When & Where
    • Schedule and Prices
    • Destinations >
      • North Andaman Thailand >
        • Similan Islands
        • Surin Islands >
          • Richelieu Rock
        • The essential Underwater photo Guide to diving Thailand
      • South Andaman Thailand >
        • Phuket & Koh Phi Phi National Parks
        • Koh Lanta National Park
        • Koh Lipe and Tarutao National Park
      • Mergui Archipelago >
        • Liveaboard diving holiday in Myanmar
        • Burma's best dive sites
        • The Ultimate Underwater photo Guide to diving Burma
  • ABOUT
    • Our Boat >
      • DELICIOUS FOOD
    • Diving in Thailand in 2024-2025
    • Diving in Myanmar/Burma in 2024-2025
    • Blackwater diving in Thailand and Myannmar
    • Marine life in Thailand's Andaman Sea
    • Marine life in Mergui Archipelago
    • Dive Courses >
      • Learn to Dive
      • Continue diving education
      • Rescue diver
      • Professional Dive Courses
      • Hone your dive skills with a specialty course
      • Photo coaching in Thailand on the Smiling Seahorse
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    • Our hotels recommendations
    • Khao Sok National Park
    • Taxi services >
      • Taxi services to and from Ranong
      • Taxi services to and from Phuket
      • Taxi services to Tap Lamu and Khao Lak
    • 10 things to do around Ranong
  • PROMO
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    • Special Expeditions >
      • 8D Special Marine Bio with Gavin Miller - 10 Nov 2025
      • 8D Whale shark expedition - 20 March 2026 - North and South
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Andaman Liveaboard Thailand and Burma

Dive off the beaten track at the most beautiful sites of Thailand and Myanmar!

Reef friendly and photographers ready liveaboard!

Our Brand new boat, The MV Smiling Seahorse
Our boat, The MV Smiling Seahorse
Check our cruises, dates, and prices

We are a reef-responsible dive operator respectful of nature and particularly well suited to accommodate underwater photographers.​
Located on the Thailand / Burma border, at the port of Ranong, The Smiling Seahorse offers diving cruises in the Andaman Sea from the Mergui Archipelago in Burma to Koh Lipe in the south of the Andaman Sea in Thailand, close to the Malaysian border , passing through the Surin and Similan Islands.

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Operating since 2012...
We organize day trips and liveaboard dive cruises from 5 to 9 days from Ranong, Khao Lak and Phuket in Thailand. Every cruise includes breathtaking sites,
flawless​ onboard service, outstanding local and international cuisine 4 times a day, and lifelong memories. We are extremely proud to be recognized as one of the best in the area and share our love of the sea with a tight-knit community of equally passionate divers.
Reef-friendly organic products are available on board
Reef-friendly organic products are available on board

New exclusivity for advanced divers!

Black Water diving option now on all our cruises!
​

Although we have now heard of Blackwater diving for a few years, it is not yet developed in Thailand and I only tried it for the first time 2 years ago from our boat in the Similan Islands ( Thailand), and guess what? ... we loved it!
We now invite you to try this new way of night diving with us ...

Here is a little video introducing what is Blackwater diving
Black Water diving option now on all our cruises!

an eye under the sea. Burma's dive cruises
Photo gallery
Meet mantas ray in Burma's dive cruise
Video gallery
Hotel Taxi Extensions
Hotel Taxi Extensions

More details about our dive cruise holidays

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Established in the Thai border town of Ranong, this was an obvious choice for the headquarters of The Smiling Seahorse Dive Center. Setting up shop in this little known place allows us quick and easy access to the best dive sites in both Burma and Thailand. 
           
Diving in Thailand is particularly exceptional, in the national parks of the Surin and Similan Islands where we only visit the best sites. We like to go to the Surin Islands, which are much less visited; as well as Koh Bon and Koh Tachai, the best dive sites north of the Similans.
In the part south of Phuket, we visit the national parks of Koh Phi Phi, Koh Lanta (Hin Daeng Hin Muang, Koh Ha), Taruato (including Koh Lipe, the most famous island of the park).

Diving in Burma, a new adventure...
Burma, now known as Myanmar, offers an off-the-beaten-track playground for adventure seekers.
One of the reasons why we love to dive there so much is the diversity of the underwater life in Myanmar as well as the Diversity of the dive sites of the Mergui Archipelago and the secrets of the Burma Banks on the edge of the continental shelf where you will not see. no other dive boat for days.
Are you curious about what other magnificent creatures you can find while diving in Burma? Check out our page dedicated to Diving in Burma
When to go diving with us?
See our different cruises, their itineraries, their prices.
Schedule & Prices
The Smiling Seahorse team
​We can welcome you English, French, and Thai
Learn about us

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Our guest book

We are so proud of our
Tripadvisor Travelers Choice certificate
​... click on it for our reviews
ethical dive center
Watch our YouTube videos
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Find us on social media for more pics of our Dive cruises in Thailand and Myanmar



The Smiling Seahorse Andaman Dive cruises
Review: 5, based on 194 reviews "The best Similan diving expérience!!" by fiftystatesevenconts, written on April 21, 2024
The title says it all and every component of the Smiling Seahorse stands out. The dive sites were varied and each one offered something new to shout about. I reached my 900th dive on this trip from Khao Lak to Phuket, and have been on many live-aboards, and this one knows what divers want. They help you don your wetsuit, hold on to your tank before you jump in or climb back up the ladder, to save your back for your 24 dives in a week, put your fins on for you, remove them after the dive, and would likely breathe for you if requested. James, my extremely experienced guide and cruise director, did everything in his power to make all my dives special. What resulted in that, were some pretty special dives: 8 black tipped sharks in a few minutes, 5 massive blotched fantail rays, a guitar shark, a leopard shark, a deadly stonefish, giant clams, and rivers of fish swimming through the corals, actually blocking my view of him at one point, and it was hard to follow him, like in a fog! These big schools of fish are one of the main reasons for a live-aboard, remoteness, and these are some incredibly healthy reefs. The food was excellent as well, with mountains of it offered 3 times a day, plus a "snack", which really amounted to 4 meals a day. If you want to feel like every day is your birthday, with your invited guests including countless green morays, cuttlefish, huge schools of giant trevallies and bright fusiliers carpeting the ocean, get aboard the Smiling Seahorse.
★★★★★ by fiftystatesevenconts January 21, 2024
reviewed at Tripadvisor

The Smiling Seahorse

Our dive cruises

170 Ruangrat Rd, Tambon khao nivet, Mueang Ranong District, Ranong 85000​
Phone: +66860110614​
​Mail: [email protected]

www.thesmilingseahorse.com
Contact us on WhatsApp
Our schedule and prices
​Dive in Thailand
​Dive in Myanmar
​Discover our boat
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In the press
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TAT Licence number : 31/00935
© COPYRIGHT 2012-2024. 
​
The Smiling Seahorse ​
Responsible Manta Tourism Operator
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  • When & Where
    • Schedule and Prices
    • Destinations >
      • North Andaman Thailand >
        • Similan Islands
        • Surin Islands >
          • Richelieu Rock
        • The essential Underwater photo Guide to diving Thailand
      • South Andaman Thailand >
        • Phuket & Koh Phi Phi National Parks
        • Koh Lanta National Park
        • Koh Lipe and Tarutao National Park
      • Mergui Archipelago >
        • Liveaboard diving holiday in Myanmar
        • Burma's best dive sites
        • The Ultimate Underwater photo Guide to diving Burma
  • ABOUT
    • Our Boat >
      • DELICIOUS FOOD
    • Diving in Thailand in 2024-2025
    • Diving in Myanmar/Burma in 2024-2025
    • Blackwater diving in Thailand and Myannmar
    • Marine life in Thailand's Andaman Sea
    • Marine life in Mergui Archipelago
    • Dive Courses >
      • Learn to Dive
      • Continue diving education
      • Rescue diver
      • Professional Dive Courses
      • Hone your dive skills with a specialty course
      • Photo coaching in Thailand on the Smiling Seahorse
    • Guest Book
    • FAQ
  • Plan your trip
    • Our hotels recommendations
    • Khao Sok National Park
    • Taxi services >
      • Taxi services to and from Ranong
      • Taxi services to and from Phuket
      • Taxi services to Tap Lamu and Khao Lak
    • 10 things to do around Ranong
  • PROMO
    • HOT DEALS
    • Special Expeditions >
      • 8D Special Marine Bio with Gavin Miller - 10 Nov 2025
      • 8D Whale shark expedition - 20 March 2026 - North and South
  • gallery
    • Photos
    • Videos
  • CONTACT
  • BLOG
    • Most popular posts