Dangyokei Canyon is located off Route 261 south of Imbara Station on the JR Sanko Line. The area and the limestone gorge is part of the Dangyo Gorge Kannondaki Prefectural Nature Park. The river running through the gorge is the Nigori River, a tributary of the Go River.
Paths lead down from Route 261 to the gorge and there is an onsen and campsite nearby. If you are driving from Hiroshima on the Hamada Expressway take the Oasa Interchange.
Not far north from here is the Kannon Waterfall, ideal for cooling off at this time of year. The waterfall is close to Shikaga Station on the JR Sanko Line (Iwami Kagura Line).