Ōsugidani, Natural monument canyon in Odai, Japan
Ōsugidani is a canyon that runs along the Miya River, displaying emerald-green waters as it cuts through layered rock formations. Multiple suspension bridges span across the gorges, allowing visitors to walk through different sections of the valley.
The valley formed over centuries through water erosion and was later designated as a natural monument. Severe damage occurred in 2004, followed by restoration efforts that allowed public access to resume in 2014.
The site holds status as one of Japan's three most important valleys, drawing visitors who come to witness the power of flowing water in a natural setting. The network of pathways and bridges demonstrates how people have learned to move through this dramatic landscape.
A bus from Mitsuya Station takes visitors to the final stop in about an hour. Visitors must register at the hiking center before heading out on the trails.
The site contains seven waterfalls scattered throughout its length, each visible from different sections of the walking route. This location ranks among Japan's wettest regions, which shapes how powerfully the water flows through the landscape.
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