The largest waterfall in Koh Phangan, the Phaeng Waterfalls are actually made up of two waterfalls: Phaeng Yai and the smaller Phaeng Noi. Located in the Thansadej Koh Phangan National Park, the falls are best viewed during the monsoon season when the cascades are heavy. However, be prepared for a difficult uphill trek through dense jungles before you reach the falls, 300 metres up from the start of the path. Once you reach the lower level of the falls, you can cool off at a natural pool where the water flows down. If you're still feeling up to more climbing, hike up another 200 metres to the next level, and enjoy the amazing views over Koh Phangan island.