Phi Liêng Waterfall - nicknamed Tây Nguyên Đệ Nhất Thác, the greatest waterfall of the Central Highlands - is a 7-tier cascade dropping over 70m through primary and secondary forest in Đam Rông district of Lâm Đồng province, about 80km from Đà Lạt. The waterfall is fed by streams draining the highland plateau and flows through K'Ho minority community territory where almost no foreign visitors reach.
The approach passes forest protection checkpoints, K'Ho villages, and coffee farms before the trail enters the forest and the phone signal disappears. The descent to the waterfall base is the most physically demanding section - a 40-45 degree slope with rope assistance dropping around 70m. Below the falls, a clear pool suitable for swimming in the dry season and a flat campable area make it a genuine destination for those willing to earn it.