Popular dive sites in Thailand

Popular dive sites in Thailand

Thailand is home to some of the most incredible dive sites in the world, including the famous Richelieu Rock. This site is known for its stunning coral formations and abundance of marine life, making it a must-visit for scuba diving enthusiasts.

One of the highlights of diving in Thailand is the chance to see leopard sharks on a day trip. These majestic creatures are a sight to behold as they glide gracefully through the crystal-clear waters. Divers often have the opportunity to get up close and personal with these gentle giants, providing a truly unforgettable experience.
For those looking to learn how to dive, Thailand has a number of top-notch dive schools that offer courses for all levels of experience. Whether you’re a beginner looking to get certified for open water diving or an experienced diver wanting to further your skills, there are options available to suit your needs.
The west coast of Thailand is particularly popular for diving, with its clear waters and diverse marine life. From colorful coral reefs to fascinating shipwrecks, there is something for everyone to explore beneath the surface. Whether you’re looking for a leisurely dive or an adrenaline-pumping adventure, Thailand has it all.

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Top Dive Sites Around Thailand

Beyond Richelieu Rock, Thailand’s dive map spans two coasts. In the Andaman Sea, the Similan Islands offer granite boulder swim-throughs and visibility often exceeding 30 metres, while Koh Bon and Koh Tachai are known for manta ray encounters between February and April. On the Gulf side, Koh Tao remains the most popular place to learn, with shallow, calm bays like Japanese Gardens ideal for first dives.

Best Time to Dive in Thailand

The Andaman coast (Phuket, Similan, Khao Lak) dives best from November to April, when seas are calm and visibility peaks. The Gulf coast (Koh Tao, Koh Samui) is reversed, with its clearest water running from May to September. This means you can dive somewhere in Thailand comfortably almost year-round, simply by switching coasts with the monsoon.

Practical Tips for Divers

Most liveaboards to the Similans require an Advanced Open Water certification for the deeper sites, so plan your course dates early in the trip. Water temperatures stay warm at 28 to 30 degrees Celsius, so a 3mm wetsuit is usually enough. Always dive with a licensed operator, check that rental gear is serviced, and keep a safety margin on air and no-decompression limits.