Under the sea, there is an exhibition zone where visitors can learn how this magnificent 53.85 km tunnel built 240 m under the sea was completed. Seikan Tunnel The four main islands are all connected. South Portal is located on the Honshu side. Seikan Tunnel Museum introduces the structure of this tunnel by exhibiting solid models, videos, and display panels. The tunnel travels beneath the Tsugaru Strait linking Aomori prefecture of Honshu and the neighboring island of Hokkaido. Size and physical characteristics; 5. The history of this big project is shown in the way that is easy to understand. The tunnel, carrying a railway line, would replace the Seikan Ferry, then the only mass transportation between Hokkaido and the rest of Japan. At 24.5 kilometres, the Lærdal tunnel is the world's longest road tunnel. That is why in March of 2016, the Hokkaido Shinkansen, linking Aomori on Japan’s main island of Honshu with Hakodate on the island of Hokkaido via the Seikan Tunnel, was inaugurated. Seikan tunnel is a 53.85 km railway tunnel with a 23.3 kilometer long portion under the seabed, and is the longest undersea tunnel in the world. The Seikan Tunnel. Hotels near Seikan Tunnel Museum: (0.45 km) Marufuku Ryokan (2.98 km) Pension Tsuru (12.66 km) Shiriuchi Onsen Ryokan (13.44 km) Onsen Ryokan Yano (14.29 km) Ryokan Yokohamaso; View all hotels near Seikan Tunnel Museum on Tripadvisor We introduce the world’s longest of Seikan Tunnel (240 m in sea floor, 53.85 km in total length) by sound, image and solid model. Now the Hayabusa or Hayate Shinkansen go through the Seikan Tunnel ( 53,45 km) to cross the sea and stop at one or all of the new stations : Shin-Hakodate-Hokuto Station, Kikonai Station and … The road links Aurland and Lærdal, in the heart of Sogn, and provides a ferry-free connection between Oslo and Bergen. It’s 135 metres below the surface. Before the 26th of March 2015, the last stop of the Tohoku shinkansen was Shin-Aomori. When was it built; 3. Until then, access to Hokkaido was challenging, but now with only one transfer, you can get there faster. Seikan Tunnel, Japan: 1. Name of structure; Map; 2. You can go by the railway train which was actually used to the tunnel of 140 m below the sea level. Why was it built; 4. The tunnel started revenue service in 1988, and hosted some famous sleeper trains for almost 3 decades, including the Hokutosei, Cassiopeia, and Twilight Express. This is one of only two undersea stations in the world. 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