Infiltrating the Kusaka River New Underground Discharge Channel.
See and experience the history of floods and flood control technology.
The new discharge channel, through which start to flow the water in June 2023.
Your guide will lead you through the drainage tunnel, which is normally off-limits to the public, and you will get a feel for the imposing size of the enormous structure up close while watching images projected directly into the tunnel, experiencing the history of the fight against flooding and flood control.
Shin-Kusaka River Floodway Experience Plan List
No.2
Tunnel exploration of Kusaka River New Underground Discharge Channel
◆Tour of the discharge channel
Wear a helmet and boots and walk around the tunnel entrance
◆Tunnel exploration
Due to the structure of the Shin-Kusakagawa spillway, water accumulates in the latter half of the tunnel.
We put on waders (boots that reach up to the waist) and dive into the water up to knee-deep!
We also explore creatures that survive in the dark!
No.3
Cauoe experience in the Kusaka River New Underground Discharge Channel
We are currently preparing! (If you are interested, please contact us.)
◆Tour of the discharge channel
Equip yourself with a helmet and boots and walk around the tunnel entrance
◆Underground cruise
Activity to go to the construction penetration point in the center of the tunnel by kayak or water bike
No.4
Pass trough the Kusaka River New Underground Discharge Channel by canoeing
We are currently preparing! (If you are interested, please contact us)
◆Tour of the discharge channel
Equip yourself with a helmet and boots and walk around the tunnel entrance
◆Underground cruise through the tunnel
The tunnel is just over 5km long, and there is a maintenance road on the exit side in the neighboring town of Ino, so it is possible to return to the surface alive. This is a hard activity where you cruise about 2km to the tunnel exit maintenance road on your own.
