When you combine mountain peaks with rivers, what do you get? Waterfalls. Doi Inthanon National Park is the location of some of the most spectacular waterfalls in Thailand. The most stunning of these waterfalls is probably Mae Yai, which cascades down from a height of 100 meters (330 feet). Mae Klang Waterfall is easily accessible to visitors, being located right near the park entrance. On the weekends expect to see plenty of Thai families enjoying a picnic near this scenic point.