The valley, formed by the erosion of the Yoshino River, presents a thousand different and strange views. From the sightseeing boat, visitors can enjoy the beauty of this deep ravine, its conglomerate schist (designated as a natural treasure by Tokushima Prefecture), and the beauty of the ravine from season to season.
                            
                            
                            - Regions
 - West
 
- Themes
 - Activities
 
| Address | 徳島県三好市山城町西宇1520 | 
|---|---|
| Telephone Number | 0883-84-1211 | 
| Business Hours | 9:00-17:00  | 
| Website | Website |