The park shares a long riverine border with Laos, often referred to as the 'border of friendship' between the two nations.
Phu Suan Sai is home to the rare and elusive Red-billed Blue Magpie and various species of hornbills.
The park covers an area of approximately 117 square kilometers within the Dong Phaya Yen-Khao Yai forest complex region.
Temperatures at higher elevations can drop significantly during the winter months, occasionally reaching single digits in Celsius.
The park contains the Noen 1408 viewpoint, which is named after the altitude of the peak in meters above sea level.
Phu Suan Sai National Park is located in the Na Haeo District of Loei province, bordering the Lao People's Democratic Republic along the Hueang River. The landscape consists of mountainous terrain characterized by bamboo forests, dipterocarp forests, and dense evergreen vegetation. It serves as a vital habitat for diverse bird species, including rare montane varieties. The park maintains established camping grounds near the visitor center for those seeking overnight stays. Visitors can access several scenic viewpoints that overlook the border landscape between Thailand and Laos. The park is part of the Phu Suan Sai mountain range, which features cooling mist and lower temperatures throughout much of the year compared to the rest of the region.
The Noen 1408 viewpoint for panoramic shots of the mist-covered mountain range and the border landscape.
Bring layers of clothing as temperatures fluctuate significantly between the base and the mountain viewpoints.
Pack insect repellent, as the humid forest environment often harbors mosquitoes and ticks.
Ensure your vehicle is capable of handling steep, winding mountain roads before attempting the drive to the park entrance.
Attempting to hike off-marked trails, which can lead to getting lost in dense bamboo thickets.
Park access may be restricted during peak monsoon season due to muddy and hazardous road conditions.
Maintain silence near camping areas, pack out all trash, and refrain from feeding local wildlife.
