A nationally designated site of scenic beauty, this gorge—the largest in Shikoku—stretches along the foot of Mount Ishizuchi to its south, and through it runs the clear-flowing Niyodo-gawa River with its waters sparkling in emerald green tones. Containing the headwaters of the Niyodo-gawa River (known for its “Niyodo Blue” coloration) as well, the Omogo-kei gorge features the highest water quality ranking in Japan. Taking on different appearances from one season to the next, the scenes offered here are truly works of natural art, made up of the area’s curiously shaped rock formations and mountain streams.
This is a place that shows a range of different faces depending on the time and season: from the mountain flowers and fresh verdure of spring and dynamic river recreation of summer to beautiful fall foliage and the sparkling snow-covered world of winter.
Numerous trails offer access to places where this gorge can be enjoyed in full on foot as well!
Come enjoy an excursion along one of these paths in search of your own favorite scenery.
A pathway of about 600 m that runs along the river from the Omogo-sangaku Museum parking lot to the Tsūten-kyō bridge. Here, with views of the emerald green river to the side, visitors can experience the beauty of the gorge with ease. Walks of about 20 minutes each way lead to attractions like Kanmon, where curiously shaped precipitous rock formations line both sides, and the Kūsen-kyō bridge with its mystical air.