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Guide to Thailand’s Top 3 Diving Islands – Explore the Stunning Underwater World

Published: 2026-09-24 👁 100 views
Last updated 2026-09-24 — The best time to go diving in Thailand is from December to February each year. Not only is the weather pleasant, but some protected islands also open to the public during this period. Today, let’s share some information about diving in Thailand. Come and take a look~!

Every year12to2is the best time to go diving in Thailand. Not only is the climate comfortable, but some protected islands also open to the public at this time. Today, we’ll share some information about diving in Thailand. Let’s check it out!~!

30It takes just a few minutes to get there. This was once an exclusive holiday island for the Thai royal family, so you can imagine how good the environment and water quality are. Most people choose to take a day trip here from Phuket, or you can book a hotel on the island and stay for a few days to dive.

9It consists of several small islands and is a protected archipelago that is only open to the public from11to4each year. The water here is crystal clear, with a rich variety of coral and fish on the seabed, making it one of the top ten diving spots in the world.

In summary, if you want to try basic snorkeling or uncertified diving, Emperor Island is a good choice; if you want to get a diving license, Koh Tao is suitable; if you already have a certification and want to fully experience the thrill of diving, then consider liveaboard diving trips around the Similan Islands.

If you’re planning a trip during the Spring Festival holiday, why not consider going diving in Thailand?~! 

Tips for Diving in Thailand:

1.Various snorkeling and diving1day ormulti-day tours to Emperor Island, Koh Tao, and the Similan Islands can be booked on the main islands of Phuket or Koh Samui. Some prices can even be negotiated. If you plan to get a diving certification, it’s recommended to go with internationally renowned training agencies such asPADI,SSI,CMAS.

2.Whether you’re snorkeling or diving, the travel agency or training center you sign up with can provide diving equipment. However, some equipment may not be included in the registration fee, so make sure to confirm with the operator to avoid any issues.

3.Underwater, always follow your instructor’s guidance. Avoid going off alone or pushing yourself to swim too deep or too far.

4.Underwater, due to water pressure on your eardrums, you might feel some discomfort or pain. But no worries — mastering a few simple equalization techniques during pre-dive training will allow you to dive smoothly and comfortably.

5.While underwater, do not touch unfamiliar marine life with your hands or feet to avoid provoking potentially aggressive creatures..

6.For nearsighted divers, consider using prescription diving masks. Never wear contact lenses underwater—they can easily fall out, and when you ascend, your body (including your eyes) will begin to release nitrogen. Contact lenses can interfere with this process, which may be harmful to your health. 

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