Khao Yai Haew Narok Trail

The Haew Narok Trail in Khao Yai National Park leads through UNESCO World Heritage-listed primary tropical rainforest to Haew Narok, the tallest waterfall in the park at approximately 150 meters high, cascading in three tiers into a jungle gorge. Khao Yai National Park is located about 200 kilometers northeast of Bangkok in Nakhon Ratchasima Province and was among the founding sites of the Dong Phayayen-Khao Yai Forest Complex, inscribed by UNESCO in 2005 as one of Southeast Asia's most significant protected forest areas. The trail covers approximately 8 kilometers return from the park's main visitor center area, descending roughly 300 meters through dense dipterocarp and tropical seasonal forest before reaching the waterfall viewpoint. The path is primarily packed earth and rock, winding through continuous canopy that provides shade throughout. Park regulations require all visitors trekking to Haew Narok to be accompanied by a licensed park guide; unescorted trekking is prohibited on this route. Guides are available for hire at the park visitor center for approximately 500 to 1,000 THB per group. Wildlife sightings are among the most reliable of any trail in Thailand: Asian elephants regularly cross the lower trail sections, great hornbills are frequently seen from viewpoints, and white-handed gibbons call at dawn and dusk from the forest canopy. Barking deer and sambar deer are common near forest clearings. The waterfall itself is best viewed from the platform above the drop, which offers a dramatic perspective over the cascade into the gorge below. Water volume is greatest from October through December following the monsoon season; in the dry season the falls diminish but remain flowing. The park entrance fee is approximately 400 THB for foreign adults.