Harajiri Falls (原尻の滝) is one of the 100 best Japanese Waterfalls located in Oita. It is 20m tall and 120m wide large waterfalls. It is considered as the Asian Niagara Falls.
Tourist Info.
There are parking and restroom.
Access
0. at Ogata Station.
1. Use local bus to Harajirinotaki.
45 min
New Wave Samurai Movie. 
映画好き集まれ！ 
Harajiri Falls runs from the Ogata River. It is about 20m tall and 120m wide. Usually, the water flows gently over the rock, but after the heavy rain, all the rocks will be the fall of water.
The rock is one large stab of rock made of a kind of stone known as Aso ignimbrite, the most common type of rock at Oita Bungo-ono Geopark.