The name 'Haew Narok' translates to 'Chasm of Hell' in Thai, referencing its sheer drop and dangerous terrain.
The waterfall is divided into three distinct levels, though only the first level is easily accessible to the general public.
In 1992, a tragic incident involving a herd of wild elephants falling over the cliff led to the installation of protective barriers in the area.
The waterfall is situated along the Klong Pra Tha, which feeds into the Prachin Buri River.
The trail leading to the waterfall is prone to temporary closures during the peak rainy season if water levels become hazardous or trails become too slick.
Haew Narok Waterfall is the tallest and most prominent waterfall within Khao Yai National Park, cascading down three tiers. The total drop reaches approximately 150 meters, with the first tier being the largest and most powerful. It is located on the Prachin Buri side of the park, accessible via a concrete trail that transitions into a steep staircase. The surrounding forest is part of a UNESCO World Heritage site known for diverse flora and fauna. Visitors must navigate roughly one kilometer of walking path to reach the primary viewing platform. The waterfall is particularly vigorous during the monsoon season when water flow is at its peak. It serves as a vital water source for the park's elephant population.
The main viewing platform at the end of the paved trail offers a direct, head-on perspective of the first tier.
Wear sturdy, closed-toe walking shoes with good traction as the stairs can be slippery.
Bring sufficient water, as there are no shops or vendors once you begin the descent to the viewing platform.
Pace yourself on the return climb, as the ascent consists of numerous steep steps.
Attempting to climb down to the base of the waterfall, which is strictly prohibited and dangerous; relying on flip-flops for the trail.
Occasionally closed during the peak of the monsoon season for safety; always check park status upon entry to Khao Yai.
Maintain a quiet demeanor to avoid disturbing local wildlife; do not feed monkeys or other animals.
