Ton Nga Chang Waterfall is one of the most prominent and largest waterfalls in southern Thailand, situated within a wildlife sanctuary along the Banthat mountain range near Hat Yai, an area characterized by rugged mountainous terrain covered with dense tropical rainforest that serves as an important natural watershed. The waterfall was formed through long-term erosion of granite and sedimentary rock layers, creating cliffs, natural pools, and a series of cascading tiers that together form a seven-level waterfall, each with its own unique features. The first tier offers a wide and calm pool suitable for swimming and family relaxation, while the second tier features water cascading from a high cliff, producing mist that creates a cool and humid environment ideal for mosses, ferns, and wild orchids. The third tier, known as the highlight of the waterfall, is where the stream splits into two parallel flows resembling elephant tusks, dropping from a height_ of around 20 meters due to natural rock formations, making it a popular viewpoint and photography spot. The upper tiers, from the fourth to the seventh, are located deeper within the forest and become increasingly difficult to access, requiring steep and sometimes slippery trekking routes with occasional climbing, making them more suitable for experienced hikers and adventure travelers, often with guidance for safety. The surrounding forest is part of a rich tropical ecosystem with high biodiversity, home to large trees, diverse plant species, and wildlife such as monkeys, birds, and small forest animals, reflecting the area’s natural abundance. The water remains clear as it is naturally filtered through forest soil and rock layers, allowing visitors to enjoy the site year-round, with the most scenic period being during the late rainy season to early winter when water flow is at its peak, offering ideal conditions for swimming, relaxing, trekking, and experiencing the natural beauty of southern Thailand.