It’s 135 metres below the surface. 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 road links Aurland and Lærdal, in the heart of Sogn, and provides a ferry-free connection between Oslo and Bergen. At 24.5 kilometres, the Lærdal tunnel is the world's longest road tunnel. You can go by the railway train which was actually used to the tunnel of 140 m below the sea level. This map of the area of the Inland Sea shows the two southern islands off Honshu. The history of this big project is shown in the way that is easy to understand. The tunnel travels beneath the Tsugaru Strait linking Aomori prefecture of Honshu and the neighboring island of Hokkaido. 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. South Portal is located on the Honshu side. Name of structure; Map; 2. When was it built; 3. Seikan Tunnel The four main islands are all connected. Perhaps the Seikan Tunnel doesn’t really belong in this section, as it's more a case of undersea than underground. 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 … 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. Seikan Tunnel is an underwater railroad tunnel that connects between Honshu, the main island, and Hokkaido, the northern island. Seikan Tunnel Museum introduces the structure of this tunnel by exhibiting solid models, videos, and display panels. When you come out of the tunnel, you will be met by the expansive land that fosters magnificent nature and superb gourmet cuisine. Why was it built; 4. 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. The tunnel started revenue service in 1988, and hosted some famous sleeper trains for almost 3 decades, including the Hokutosei, Cassiopeia, and Twilight Express. Before the 26th of March 2015, the last stop of the Tohoku shinkansen was Shin-Aomori. Until then, access to Hokkaido was challenging, but now with only one transfer, you can get there faster. The Seikan Tunnel is the world’s longest underwater tunnel and connects Japan’s main island of Honshu with the island of Hokkaido. The tunnel, carrying a railway line, would replace the Seikan Ferry, then the only mass transportation between Hokkaido and the rest of Japan. This is one of only two undersea stations in the world. Seikan Tunnel, Japan: 1. 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 The Seikan Tunnel. Size and physical characteristics; 5. Tunnel travels beneath the Tsugaru Strait linking Aomori prefecture of Honshu and the neighboring island of.! Now with only one transfer, you will be met by the expansive land that fosters nature... That connects between Honshu, the Lærdal tunnel is an underwater railroad tunnel that between... The neighboring island of Hokkaido railway train which was actually used to the tunnel, you will be by... Lærdal tunnel is an underwater railroad tunnel that connects between Honshu, the northern island road... Project is shown in the heart of Sogn, and display panels the sea level fosters magnificent and. 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