The name Oni-no-Shitaburui translates literally to 'Demon's Tongue' in reference to the shape of the granite rock formations.
The entire gorge floor is covered by a specialized wooden path system to preserve the surrounding plant life.
The area is recognized for its autumn foliage, which draws significant local traffic when the leaves change color.
The site is historically associated with the mythology of the Izumo region, specifically the legend of the deity Susanoo-no-Mikoto.
Geologically, the gorge showcases rare granite erosion patterns that are distinct from the surrounding landscape.
Oni-no-Shitaburui Gorge is a V-shaped canyon carved by the Ii-nashi River in Okuizumo, Shimane Prefecture, known for its unique limestone rock formations. A 2-kilometer-long elevated wooden boardwalk allows visitors to traverse the gorge floor without damaging the natural ecosystem. The canyon features prominent rock shapes named after folklore, including the 'Oni-no-shitaburui' (Demon's Tongue) for which the gorge is named. The terrain is composed of granite, which the river has sculpted into jagged, moss-covered crags over millennia. It is a designated National Place of Scenic Beauty. The gorge is particularly noted for its biodiversity and its status as a site of historical importance in local mythology.
From the wooden bridge platforms where the river flows directly beneath the jagged granite cliffs.
Wear sturdy walking shoes, as the wooden boardwalk can become slippery when damp.
Bring insect repellent during the summer months, as the dense forest environment attracts mosquitoes.
The narrow walkway can become crowded during peak fall foliage season; aim for early mornings.
Do not attempt to scramble down the rocks to the riverbank, as the terrain is unstable and environmentally protected.
Accessible year-round, but sections may be temporarily restricted during heavy winter snowfall or extreme weather events.
Stay strictly on the designated boardwalk to protect the moss and native flora; do not litter.
