Marine Science Expedition in Thailand’s Andaman Sea with Gavin Miller
This week marked another exciting themed expedition aboard The Smiling Seahorse, as we had the pleasure of hosting distinguished British marine biologist Gavin Miller for our annual Marine Science expedition. With a total of 29 exhilarating dives scheduled along the west coast of Thailand, our journey spanned from the Malaysian border in the south to the Myanmar border in the north.
Commencing on 18 February in Phuket and concluding on 26 February in Tap Lamu, this special expedition welcomed a diverse group of marine enthusiasts from around the globe. Our journey was dedicated not only to exploring the rich marine biodiversity of the Andaman Sea, but also to learning more about the intricate relationships, behaviours and adaptations that make this ecosystem so fascinating.
This liveaboard adventure offered much more than an exceptional week of diving. Through daily presentations by Gavin Miller, we uncovered some really cool mysteries of the ocean and gained new insights into the delicate balance of marine ecosystems. What we learned in the classroom could then be taken underwater, giving us a chance to recognise behaviours and interactions during our dives.
Gavin Miller and Global Reef: Advocates for Marine Conservation
We were thrilled to welcome Gavin Miller aboard The Smiling Seahorse for our first Marine Science expedition, with the idea of making it an annual occurrence alongside our Whale Shark and Manta Ray expeditions.
Our collaboration with Gavin Miller, a distinguished British marine biologist working for Global Reef in Thailand, added an enriching dimension to life aboard The Smiling Seahorse. Gavin’s extensive knowledge and passion for marine biology gave us a deeper understanding of the marine ecosystem and the importance of protecting it.
Throughout the expedition, Gavin delivered a series of engaging presentations covering a wide range of subjects. One of the topics we explored was marine plastic pollution and its detrimental effects on ocean health. Gavin highlighted the need for collective action to address this growing threat and shared practical ideas about how individuals can reduce their plastic footprint.
We also explored the fascinating world of symbiotic relationships within coral reef ecosystems. From the partnership between corals and algae to the familiar relationship between clownfish and anemones, these presentations gave us a deeper appreciation of how closely interconnected marine life can be.
Gavin also delved into the diverse adaptations employed by marine creatures for predation and survival. From camouflage and mimicry to venomous stings and defensive behaviours, we gained insights into the ingenious strategies that enable different species to survive in their respective environments. It was particularly rewarding to recognise some of these behaviours during our subsequent dives.
Cooperative hunting behaviours and communication on the reef were also topics of exploration, revealing some of the complex social dynamics at play within marine communities. Gavin’s presentations illuminated the various ways in which animals collaborate and communicate to secure food resources and defend territories.
As we delved deeper into the realm of marine competition and contests, Gavin provided fascinating insights into the strategies employed by different species to gain a competitive edge. From aggressive displays to elaborate courtship rituals, we gained a new appreciation for the diversity of behaviours exhibited by marine organisms.
Overall, Gavin’s presentations were both educational and thought-provoking, inspiring us to reflect on our relationship with the ocean and the importance of marine conservation. His passion for marine biology was contagious, leaving a lasting impression on all of us and adding an extra dimension to an already memorable week of diving.
Starting in the Southern Andaman Sea, Close to Malaysia
Our expedition started in Phuket before heading towards the pristine waters of the Southern Andaman Sea, close to the Malaysian border.
Our first check dive was at Koh Haa, located within Lanta National Park. It offered our group an initial glimpse of the underwater wonders that awaited us during the days ahead.
With everyone geared up and ready, we ventured next to Hin Daeng and Hin Muang, also known as the Red and Purple Rocks, situated in the open ocean. These magnificent rock formations, adorned with colourful soft corals, provided the backdrop for three exhilarating dives.
As we explored the vibrant reef, we were greeted by schools of Red Tooth Triggerfish, Chevron Barracuda and Red Snapper, accompanied by occasional sightings of Golden Trevally and Tuna Mackerel. The variety of fish life was a perfect introduction to the biodiversity that would become a recurring theme throughout the expedition.
Day 2: From 8 Miles Rock to Tarutao National Park
On the second day of our journey, we awoke to find ourselves in international waters at 8 Miles Rock, marking the southernmost point of our expedition. Here, we encountered a bustling ecosystem teeming with life.
Massive schools of Bigeye Trevally filled the water while solitary Great Barracuda added to the spectacle. A highlight of the day was the discovery of a beautiful Frogfish, a particularly exciting find for both photographers and macro enthusiasts.
Continuing our exploration, we ventured to Tarutao National Park, where two dive sites named Stonehenge and Talarang Steps awaited us. Amidst the intricate coral formations, we encountered a diverse array of marine life, including Seahorses, Pipefish, Ghost Pipefish and Coral Cat Sharks.
Each dive offered a different opportunity to observe marine creatures in their natural habitat, and Gavin’s presentations gave us another way of looking at what we were seeing underwater. Instead of simply spotting an animal, we could begin to think about its behaviour, its adaptations and its place within the reef ecosystem.
Tarutao National Park
Koh Lanta National Park
On the third day of our journey, we returned to Lanta National Park at Hin Daeng for another dive before heading to Koh Haa for two dives at the renowned sites of the Cathedral and the Chimney.
These swim-throughs have such a unique underwater landscape. Inside the caves, we marvelled at the intricate formations and searched for elusive creatures such as nudibranchs, shrimps and crabs. Emerging back into the light, we were greeted by schools of Fusilier, Golden Trevally and African Pompano, along with the thrilling sight of a beautiful Yellow Ghost Pipefish.
Heading North Towards Myanmar
As our expedition progressed northward, we embarked on an overnight journey from Koh Lanta to the Similan Islands, passing by the shimmering lights of Phuket by night and arriving at the Similan Islands in time to dive the following morning.
We were greeted by the breathtaking beauty of this renowned marine paradise with a first dive at Shark Fin Reef. After travelling such a long distance during the night, it was exciting to finally get back into the water and continue our exploration of Thailand’s Andaman coast.
Similan National Park
Days 4 and 5 saw our exploration of Similan National Park continue at West of Eden, Deep Six, Christmas Point, Three Trees and Breakfast Bend. The crystal-clear waters of the Similan Islands provided the perfect backdrop for our dives, allowing us to witness the vibrant marine life that thrives throughout the national park.
Schools of Fusilier and Barracuda moved through the water alongside majestic Napoleon Wrasse and Giant Trevally. We also had the privilege of encountering smaller creatures, including the elusive Ribbon Eel and exquisite nudibranchs, adding another dimension to our dive experiences.
After a day of diving and learning, there was naturally also time to relax aboard The Smiling Seahorse. The rhythm of a liveaboard expedition is not only about what happens underwater; the time between dives becomes part of the adventure too.
Surin National Park
Continuing our journey northward, we reached the Surin Islands on Day 6, where we spent the final three days of our expedition exploring iconic dive sites such as Torinla Rock, Aow Pakgad, Richelieu Rock, Tatchai Pinnacle and Koh Bon.
These sites provided more opportunities to explore the extraordinary biodiversity of the Andaman Sea. From the intricate behaviour of Harlequin Shrimp to the ethereal presence of Ghost Pipefish, each dive revealed new subjects to observe and discuss.
Massive schools of Chevron Barracuda, Bigeye Trevally and Longnose Emperor added to the spectacle. After several days of travelling north from the Malaysian border, the expedition was drawing towards its conclusion, but the underwater encounters remained every bit as varied and fascinating.
Thanks for Sharing These Adventures with Us Aboard The Smiling Seahorse
As our expedition drew to a close, we reflected on the incredible journey we had undertaken and the wealth of knowledge we had gained from our esteemed guest, Gavin Miller. His passion for marine conservation and dedication to sharing his expertise enriched our expedition experience, leaving us with a deeper appreciation for the wonders of the ocean.
From the Malaysian border to the Myanmar border, our 29-dive itinerary had taken us through a remarkable selection of Thailand’s Andaman Sea dive sites, from Koh Haa, Hin Daeng and Hin Muang in the south to the Similan and Surin Islands in the north.
We extend our heartfelt thanks to all our guests for their enthusiasm and camaraderie, helping to make this journey truly unique and memorable. We also express our gratitude to Trent, Gavin and Craig for their contributions to this blog post and for helping to illustrate the beauty and diversity of our Marine Science expedition.
For those who enjoy combining excellent diving with the opportunity to learn more about the marine environment, our themed expeditions offer a different way to experience the Andaman Sea and its extraordinary underwater life.
