Thailand is perhaps the most popular country in Asia for sunny holidays we get a lot of questions about whether there are overwater bungalows or water villas in the Land of Smiles. The answer is a bit complicated because there are two resorts that currently have something along these lines, but neither are the classic design that most people are looking for. There are no overwater resorts in Krabi, but there's one on Phuket and another on Koh Samui that sort of fit the definition. There's also a somewhat mysterious overwater bungalow resort on Koh Chang, plus two others that are priced for backpackers and aren't really proper overwater bungalows.
There's plenty more good news as well, as there are quite a few overwater bungalows in Asia, including one excellent resort in neighboring Malaysia, plus the world's largest selection of over the water villas in the Maldives, which is just southwest of India, and very easy to reach from Europe.
Honestly, if you are looking for a luxurious holiday and you want to stay in a proper water villa, you should head for the Maldives. But if you want a lovely holiday on a tropical island you have many excellent choices among the luxury resorts on Phuket.