Cachoeira do Soninho is actually a pair of waterfalls on the Rio Soninho, located near Ponte Alta do Tocantins within the Jalapão region of Tocantins state.

The river forms along the northeastern boundary of the Jalapão State Park, and its crystal-clear waters flow through a striking natural landscape.

The two falls are known as Cachoeira do Soninho Grande and Cachoeira do Soninho Pequena, each offering a distinct experience.

The Grande is the more dramatic of the two, featuring a main drop of approximately 30 meters where the high water volume disappears into holes and fissures carved into the rock — the strong current makes swimming there dangerous, though calm natural pools just above the falls provide a safe and refreshing spot to cool off.

The Pequena, reached by a short trail upstream, is gentler in character: a broad, shallow stone plateau leads to a small drop that creates natural whirlpool-like pools, perfect for relaxing.

Visitors can also float downstream along the river's edge, carried along by the current through the surrounding scenery.