One of the most stunning features of the Phang Nga Bay area is, undoubtedly, the limestone karsts which jut dramatically from the emerald green sea. The karsts give the area its complicated and mystical beauty. These karsts are often covered or partially covered with lush vegetation, and the bases of these karsts are honeycombed with astonishing caves and aquatic grottos known as hongs in Thai. Many hongs can be explored via kayak or canoe, and some, at low tide, can be traversed on foot. To my mind they are a must see. They are mystical, beautiful and wondrous…