The Khao Sok National Park in Thailand

Between Phuket and Surat Thani lies an emerald treasure. 285 square miles are blanketed in verdant forest, sheltering over 300 different species of bird that have coexisted in the jungle for over 160 million years. Some trees reach 213 feet in height, from the tops of which gibbons chatter and shriek. The Chiew Larn Lake is a must-see for its mystical peaks – the trees look like they are literally engulfed by the water.