Heo Narok Waterfall - The Haew Narok waterfalls are the largest waterfalls in the park. It is a three-tiered structure that extends 150 meters from the top tier to the basal lake. The waterfall is located about 10 kilometers from the south gate along the central road through Khao Yai.
Heo Suwat Waterfalls - This waterfall runs over a 20-meter cliff into a large pool below. It is located about 8 km to the east of the visitors center and can be visited easily by car along one of the main easterly roads. It can also be reached by an 8 km hike from the visitor center (walk number 4) which takes about 4–7 hours. It is made up mainly of multiple layers of sandstone conglomerates with large interbeds of basalt.
Heo Sai Waterfalls - Haew Sai Waterfalls are located 700 meters north of the Haew Suwat Waterfalls. It is 8 km east of the visitor centre and can also be reached via car or hiking.
Heo Prathun Waterfalls - Smaller waterfall that is about 1 km north of Haew Sai waterfall.