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Blog about diving in Burma and Thailand

Trip Report: Burma Adventure, Mergui Archipelago & Burma Banks - 31 October – 08 November 2025

10/11/2025

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November 2025 dive trip report
​The MV Smiling Seahorse officially launched the new diving season with a second unforgettable adventure across Myanmar’s remote waters — from the mysterious limestone islands of the Mergui Archipelago to the vast, sandy plateaus of the Burma Banks.
Our second group of the season — joining us from France — gathered at the pier in Ranong with bright smiles and even brighter expectations. After completing the immigration formalities and crossing into Myanmar via Kawthung, passports were stamped, bags stowed, and spirits high as we set course into the wild blue.
Burma sunset onboard my dive cruise
juvenile angelfish burma

​Day 2 — Warming Up the Fins

​Our check dive at High Rock revealed the season’s first treasures: tigertail seahorse, pickhandle barracudas, swirling fusiliers and jacks, peacock mantis shrimps, white-eyed moray eels, Spanish mackerel, and even a curious rainbow runner. Thornback boxfish, pharaoh cuttlefish, and orange-spotted pipefish rounded off the dive — an explosion of colour to start the trip.
The following dives took us to the magical Three Islets:
  • Dive 2 – “The Square & Shark Cave”:  tigertail seahorses, cuttlefish, blue dragons, Durban dancing shrimps, porcelain crabs (one of them carrying eggs!) , zebra and banded snake eels, and playful cleaner pipefish.
  • Dive 3 – “Submarine & Shark Cave”: the tunnels echoed with life — yellowtail barracudas, golden trevallies, a gliding eagle ray, tomato anemonefish, tigertail seahorse, a stonefish, a bamboo shark, and several moray eels.
Our night dive at Shark Cave & Square was pure magic — nine tigertail seahorses, including some mating! Add to that toadfish, cone snails on the move, sleeping parrotfish, soldierfish, and crustaceans galore — a proper nocturnal parade.
That night, the Smiling Seahorse pointed her bow north toward the legendary Black Rock.
pretty nudibranch in myanmar
stonefish camouflaging
porcelaine crab with eggs

​Day 3 — The Kingdom of Currents: Black Rock

​Four dives in total, each more electric than the last. One lucky group spotted a manta ray early in the day, while others drifted among eagle rays, cobias, tunas, yellowtail barracudas, and dense schools of bigeye trevallies.
Amid the action, we admired white devil scorpionfish, octopus, peacock mantis shrimps, lionfish, and patches of vibrant soft corals home to butterflyfish and wrasses.
A sunset dive sealed the day — schools of sergeant fish guarding their eggs, bannerfish, snappers, and reef octopus emerging as the light faded.
mergui archipelago liveaboard fish
octopus of the andaman sea

​Day 4 — North Twin & South Twin

​North Twin Pinnacle: barracudas, fusiliers, red snappers, and a few dogtooth tunas gliding in the blue.
At North Twin Reef, we crossed paths with broadclub cuttlefish, banded sea snakes, giant morays, mantis shrimps, and vibrant corals where angelfish, triggerfish, and surgeonfish danced in the current.
At South Twin Reef, two dives revealed Maldivian sponge snails, marbled groupers, schools of surgeonfish, pyjama surgeonfish, juvenile sweetlips, a fleeting whitetip reef shark, blue ribbon eels, and another elegant wahoo cruising by.
As the sun dipped, we turned our compass westward toward the open ocean — and the mythical Burma Banks.
north twin in Mergui Archipelago
pufferfish in cavern

​Day 5 — Into the Blue: The Great Burma Banks

​The Roe Bank welcomed us with two nurse sharks resting on the sandy bottom, a graceful mangrove whipray, and dogtooth tunas patrolling the edges.
At Coral Bank, the spectacle continued: more nurse sharks, a marble ray, honeycomb moray eels, and a bustling coral city alive with emperor and royal angelfish, neon fusiliers, powder-blue sergeants, velvet surgeonfish, clown triggerfish, trevallies, and Napoleon wrasses.
Even the safety stops were lively — schools of jacks and snappers swirling in golden light.
Myanmar's burma banks ray
shark burma banks

​Day 6 — Rainbow & Silvertip Banks

​The two morning dives at Rainbow Bank were a perfect blend of serenity and adrenaline. Marble rays, nurse sharks snoozing under bommies, clouds of fusiliers, surgeonfish, tunas, great barracudas, royal angelfish, giant sweetlips, potato groupers, and grey reef sharks filled the blue.
A third dive at Silvertip Bank offered encounters with Napoleon wrasses, grey reef sharks, and another nurse shark gliding past gracefully.
One group opted for a sunset dive among vibrant reef life — bannerfish, butterflyfish, wrasses, and anthias painting the scene — while the rest of the guests embarked on a surreal blackwater dive, drifting with larval anemonefish, eel larvae, stargazers, pyrosomes, siphonophores, venus girdles, and glowing comb jellies under the stars.
diving the burma banks incredible coral reef
Bigeye trevallis
honeycomb moray at the Burma Banks

​Day 7 — Sea Fan Forest & Western Rocky

​At Sea Fan Forest, enormous gorgonians lined the reef like underwater cathedrals. Neon fusiliers, trevallies, glassfish, pickhandle barracudas, and curious mantis shrimps mingled with stonefish, anemone crabs, and longnose hawkfish.
At Western Rocky, the current brought white-tongue trevallies, yellowfin barracudas, and marble shrimps out to play.
Our night dive at Western Rocky was a treasure hunt — sleeping trevallies, massive sponge crabs, feather star squat lobsters, giant morays, tiny shrimps on whip coral, coral cowries, phenacovolva snails, and even a sea butterfly fluttering through the torchlight.
sunset on Andaman Sea Liveaboard
butterfly fish at the Burma banks
We enjoyed a delicious barbecue dinner that night, featuring spare ribs, hand-cut French fries, tomates à la provençale, a fresh salad assortment, grilled chicken wings and sausages, along with potatoes en robe des champs served with a rich garlic butter.
Eating barbecue on my Myanmar liveaboard
a barbecue on my scuba diving liveaboard

​Day 8 — Return to Western Rocky

​Back at Sea Fan Forest, we spotted lionfish, devil scorpionfish, a fimbriated moray sharing its crevice with squat shrimps and a feisty spear mantis shrimp.
Our final dives at Eagle Rock, The Cave, and The Islets revealed pickhandle barracudas, longnose emperors, dogtooth tunas, boxfish, porcupinefish, nudibranchs like Chromodoris reticulata and Glossodoris cincta, harlequin shrimps, leopard morays, rainbow runners, and Napoleon wrasses.
beautiful visibility in Burma
bannerfish at Western Rocky

​Day 9 — Farewell Dive at Dendro’s Peak

​Our final dive brought a fitting finale: schools of snappers, fusiliers, yellowfin trevallies, a majestic great barracuda, banded sea snake, and one last fimbriated moray waving us goodbye.
With our tanks empty but our hearts full, we headed back to Kawthaung for our traditional Burmese beers, immigration clearance, and the sail back to Ranong.
The second expedition of the season was everything we’d hoped for — thrilling dives, wonderful guests, and the timeless magic of the Mergui Archipelago and Burma Banks. A big thank you to our wonderful guests for illustrating this blogpost with their photos!
Until next time — see you underwater aboard the MV Smiling Seahorse!


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Camille Rovillain

Camille's love for travel and diving began in her mid-twenties, taking her across oceans and continents before she finally settled in Thailand. In 2012, she co-founded The Smiling Seahorse, driven by a desire to explore and share some of Southeast Asia’s most remote and unexplored dive destinations.
A proud mother of two, Camille still hops onboard The Smiling Seahorse every month. Passionate about macro life, she delights in guiding fellow enthusiasts on unforgettable dives across the Andaman Sea — from Myanmar’s Mergui Archipelago all the way to Thailand’s Malaysian border.

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The Smiling Seahorse

170 Ruangrat Rd, Tambon khao nivet, Mueang Ranong District, Ranong 85000​
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Responsible Manta Tourism Operator
Picture
  • 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 >
      • Emergency equipments & procedures
      • DELICIOUS FOOD
    • Diving in Thailand in 2026-2027
    • Diving in Myanmar/Burma in 2026-2027
    • 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 Mergui + Blackwater - 22nd Nov 2026 - BURMA
      • 2028- 8D Mergui + Blackwater - 12th Feb 2028
  • gallery
    • Photos
    • Videos
  • CONTACT
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    • Most popular posts