About
Bluest water, tunnel that stretches for 400 meters, spots to camp, barbecue, and cliff jump
Why go
- Bluest water you've ever seen
- Feels like a hidden gem
- Escape the city heat
Must try
- Hike the 400-meter tunnel
- Swim in the turquoise river
- Camp or barbecue along the way
- Cliff jump into the water
Pro tips
- Take odakyu line to shin-matsuda, then bus 62
- Allow 2 hours for the hike
- Bring a flashlight for tunnels
- Wear sneakers, jeans are fine
Good to know
- Beware of bears and deadly bugs
- Check if dam water gate is open
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Rating
4.4 / 5 (215 reviews)
Phone: +81 465-75-2717