Sandankyo is a long, dramatic ravine carved into the mountains of northern Hiroshima, designated a Special Place of Scenic Beauty and one of the finest gorge walks in western Japan. A well-made trail follows the river for some sixteen kilometres between sheer rock walls, past deep emerald pools, rapids, cliffs and a series of waterfalls, with atmospheric highlights like Kurobuchi, where a small boat ferries walkers across a still, dark pool between the cliffs. You don’t have to walk the whole length — the most scenic stretches are near the entrance — and it is at its most beautiful in the fresh green of early summer and the blazing maples of autumn.
🗓️ At a Glance
| Location | Akiota, Hiroshima |
| Hours | Trail daylight hours; boat seasonal |
| Admission | Free; boat crossings small fee |
| Time needed | 2 hours to a full day |
| Best time | Fresh green early summer; autumn maples |
What to See
- A river trail past cliffs, pools and waterfalls.
- The Kurobuchi boat crossing between dark rock walls.
- Deep emerald pools and rapids in the ravine.
- Fresh green in summer and blazing maples in autumn.
Combine Your Visit
- Combine with the northern Hiroshima mountains and hot springs.
- Pair with a stop in Hiroshima city, about 90 minutes south.
- Read our Hiroshima overview .
Getting There
- By bus: buses run to Sandankyo from Hiroshima, around 75–90 minutes.
- By car: easiest, with parking at the gorge entrance.
Tips
You don’t need to hike the full sixteen kilometres — the most dramatic scenery, including the Kurobuchi boat crossing, is within the first few kilometres from the entrance, so an out-and-back of two to three hours captures the best of it. Wear proper shoes for the riverside path, check that the seasonal boats are running, and come for early-summer green or peak autumn maples.
