Nagatoro Gorge, where the Arakawa River cuts through a series of distinctive layered rock formations known as Iwadatami (‘rock tatami mats’), is one of Saitama’s most scenic and photographed landscapes, designated a National Natural Monument for its striking crystalline schist cliffs. Traditional wooden boats, operated by local boatmen, carry visitors along a roughly 6 km stretch of the gorge, passing beneath towering rock walls and through gentle rapids, a tradition dating back over a century.
🗓️ At a Glance
| Location | Nagatoro, Saitama |
| Hours | Boat tours ~9:30–15:30 (seasonal, weather-dependent) |
| Admission | Boat ride around ¥2,500–3,000 |
| Time needed | 1.5–2.5 hours |
| Best time | Spring–autumn; especially vivid autumn foliage in November |
What to See
- The distinctive Iwadatami rock formations, a National Natural Monument.
- Traditional wooden boat rides through the gorge.
- Towering crystalline schist cliffs along the riverbank.
- Vivid autumn foliage framing the gorge in November.
Combine Your Visit
- Combine with Nagatoro outdoor activities for rafting or other water sports.
- Pair with Chichibu Shrine sightseeing nearby.
- Read our Saitama overview .
Getting There
- By train: Chichibu Railway to Nagatoro Station, then a short walk to the boat dock.
- By car: roughly 2 hours from central Tokyo.
Tips
Boat tours can be cancelled or shortened in high water conditions — check ahead, particularly after heavy rain. Autumn (November) foliage viewing is spectacular but also the busiest season, so book boat tickets in advance.
