This place in Thailand, whether Bangkok, Chiang Mai or Phuket, is a mighty army of tourists. However, two hours&; drive from Bangkok, there is Hua Hin, a small town built by the sea. She used to be the summer resort of Thailand&;s royal family and the first seaside resort in Thailand, but it has not been vigorously developed and there are not many tourists, thus monopolizing peace. I recommend you try it here!
The sea here is simple and elegant. There are no complicated water recreation facilities, only comfortable resorts and charming sunsets, which tell you what a real vacation is.