Nishishiiya Falls is the western sibling of a famous pair. Falling 86 meters in the town of Kusu — right on its boundary with the Innai area of Usa City — it stands a shade taller than its eastern counterpart, Higashishiiya Falls, and together with Fukino Falls the two make up the "Three Falls of Usa," northern Oita's celebrated trio of cascades. Its position on a municipal border is fitting: the waterfall belongs as much to the Kusu highlands as to the Usa valley system that made the three falls a shared local identity. At 86 meters, it is the tallest of Oita's four Top-100 waterfalls.
Visiting Nishishiiya Falls
The falls sit near the boundary between Kusu Town (Kusu District) and the Innai area of Usa City, in Oita Prefecture. The provided sources give no trail or facility information, so confirm access locally.
