Hong Islands: A cluster of islands that are just perfect for diving and fishing: Lao, Saka, Lao Riam, Pakka, and Lao Lading islands but Hong or Lao Pile is the biggest of all in the South. Most are limestone with glistening clear turquoise, white sandy beaches accompanied by deep and shallow coral reefs. A renowned summer paradise, Hong is as well known as an adventurous challenge for hiking, boasting hiking passage of 400 meters, and is a suitable spot for canoe too.