Koh Tao (sometimes spelt Ko Tao) is Thailand's original island diving destination and now the most popular place in the country to learn to dive.
The diving on Koh Tao is known for its colourful reefs that are ideal for beginners, plus some deeper pinnacles with the chance of big fish encounters for more advanced divers.
There is a wide choice of dive centres to enjoy and plenty of accommodation options to choose from.