Just past the coast of Southeastern Thailand, the crystal blue seas of the Gulf of Thailand enclose an underwater wonderland waiting to be explored. Located among an archipelago, the waves fringing Thailand’s second-largest island, Koh Samui, offer exceptional reefs and waters for scuba diving and snorkelling expeditions. Discover fascinating marine life, the best spots for underwater exploration and a guide to ethical dives, to preserve the Gulf’s unique natural wonders for years to come.
Best Seasons For Underwater Exploration
For optimal visibility and the best marine encounters, plan your underwater adventure between November and April, during the region’s dry season. During this period, clearer waters provide a window into the thriving coral reefs and the diverse creatures that call them home.
What to Look For
One of the most fascinating things to do in Samui, glide through the coral teeming with vibrant schools of fish, from the delicate butterfly fish to elusive seahorses. Spot mesmerising blue-spotted stingrays camouflaged on the sandy seabed, or venture further out to sea for majestic whale sharks, gentle giants that grace the deeper waters. For the truly fascinated, the intricate world of nudibranchs and the sea anemones right by the shoreline offer endless possibilities for exploration.
Best Spots for Snorkeling
Koh Samui’s underwater gardens and vibrant snorkelling spots envelop the entire island. Coral Cove, located east of the island, is a true testament to its name, boasting an abundance of coral formations decorated with exotic reef fish. Ao Phangka, within walking distance from Avani+ Samui Resort, offers a chance to encounter the gulf’s stunning clownfish amongst the anemones. Further North, Ao Taling Ngam’s rocky shores provide a cosy habitat for diverse marine life, while Silver Beach’s calm waters are ideal for families and snorkelling beginners.
Best Spots for Diving
For certified divers and those looking to journey deeper into the depths, nearby islands and marine parks provide ample opportunity to spot larger, more elusive marine life. Sail Rock, a pinnacle rising from the seabed, is a world-renowned dive site home to whale sharks, barracuda, and even more coral habitats. Koh Tao, a short boat ride away, offers a plethora of diving options, from shallow reefs to wreck dives, and the nearby Ang Thong National Marine Park encloses a diver’s paradise, with its towering limestone cliffs and hidden coves, showcasing diverse marine life and underwater caves.
Safety, Tips & Eco-Friendly Practices
Always prioritise safety and sustainable practices by diving with reputable companies and experienced guides. Respecting and maintaining the delicate underwater ecosystem is crucial – avoid touching coral reefs and be mindful of your buoyancy. Opt for eco-friendly sunscreen and choose reef-safe diving equipment.