This waterfall is the largest in Khao Yai National Park and is particularly popular during the rainy season. It cascades down three tiers, totaling about 150 meters, all with a steep 90-degree drop. The water flows with great force, and during the rainy season, it takes on a brown hue, resembling a river streaming into a deep valley, which is why it is named Haew Narok Waterfall. During heavy rain in the rainy season, the water can be extremely powerful, so parents should closely supervise their children. At other times of the year, you can comfortably enjoy playing in the water. This waterfall is undoubtedly one of the must-visit attractions in Khao Yai!