The park's highest peak reaches an elevation of approximately 1,200 meters above sea level.
It is part of the border-straddling mountain range that separates Thailand from Myanmar.
The park was officially gazetted in 1991 to protect the watershed forests of Thap Sakae district.
The waterfall features nine distinct levels, though only the lower tiers are easily accessible to the general public.
The area is home to the Vulnerable Indochinese serow, a goat-antelope species.
Namtok Huai Yang National Park is situated on the eastern slopes of the Tenasserim Hills in the Prachuap Khiri Khan province. The park centers on a series of tiered waterfalls originating from the Khao Luang mountain range. It encompasses a total area of approximately 161 square kilometers. The primary trail leads visitors through a dense tropical rainforest ecosystem towards the multi-level cascade. The park serves as a protected watershed area for the surrounding agricultural plains. It is a transition zone between the dry climate of the north and the wetter climate of the south. Wildlife sightings may include various species of macaques and tropical birds. The terrain consists of steep limestone ridges and forested valleys. Visitors can access various tiers of the waterfall via maintained footpaths.
The base pool of the primary waterfall tier, which offers a clear view of the water cascading against the rocky backdrop.
Bring insect repellent as the moist forest environment attracts mosquitoes and sandflies.
Wear sturdy, closed-toe footwear with good grip, as the rock steps near the waterfall can be slippery even when dry.
Carry your own water and snacks, as there are limited facilities deep within the hiking trails.
Attempting to climb the higher, non-maintained levels of the waterfall during or immediately after heavy rain due to flash flood risks.
Parts of the waterfall may be closed during the height of the dry season if water levels become too low for flow.
Avoid loud noises to minimize disturbance to local wildlife and carry out all trash to keep the park litter-free.
