2 and Tunnel No. 3 were shown to a crew from the Japan Broadcasting Corp ... to preserve the tunnels and allow public access to the war heritage site. In fiscal 2023, a prefectural research ...
But it opened the tunnels to local media to mark the 75th anniversary of the end of the war. Japan Broadcasting Corp. (NHK) took video footage of a tunnel on behalf of other media outlets.
Japan boasts the world's longest underwater tunnel, which stretches for more than miles under the seabed of the Tsugaru Strait, but it's now barely being used. Work on the Seikan Tunnel was completed ...