Somewhere along the rocky west coast of Koh Mook lies a secluded cave whose entrance leads to an emerald green pool surrounded by towering cliffs and lush vegetation. Swimming through the first half of the partially submerged entrance in complete darkness felt a little frightening at first, but as light seeped into the cave, the water started to glow a bright, emerald green. We had never seen anything like it.
Upon entering the cave, we sat in the shallow emerald waters and basked in the sun. Nothing much needed to be said – for beauty is best admired in quiet.
See more of the what to do in Ko Lanta or head over to Ko Samui in the Gulf of Thailand, where you can go on day-long excursions to the beautiful island of Ko Nangyuan and the Angthong National Marine Park.