Use Japan Wireless products with 10% discount through the following links:
Pocket Wi-Fi:https://www.japan-wireless.com/?via=m...
eSIM: https://www.japan-wireless.com/esim?v...
Airport Taxi: https://www.airport-taxi.tokyo/en?via...
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In newest RE video, we tried to uncover background, project development, construction, costs, and, of course, the wide-ranging benefits of the worlds longest undersea tunnel - the Seikan Tunnel in Japan!

The Seikan Tunnel, an engineering marvel of international significance, stands as a testament to human ingenuity and determination, and it connects the islands of Honshu and Hokkaido. It overcame formidable geographical and environmental challenges and transformed the economic and social landscape of Japan. It is also the world's longest undersea tunnel and even held the record as the longest of all tunnels - until Switzerland's Gotthard Base Tunnel opened (2016).

This Tunnel was officially opened during 1988, after approx. 24 years of heavy works. It features a double-track cross-section with a length of 53.85 km, including a 23.3 km stretch under the seabed. The tunnel's track level is approximately 100 m below the seabed and 240 m below sea level.

What is also good to know is that in 2005, the Hokkaido Shinkansen project was launched, with the aim of extending the Shinkansen network through the tunnel with a three-track rail system (it was narrow gauge initially but build with Shinkansen standards in mind!).

Shinkansen services began in 2016, connecting Tokyo and Shin-Hakodate-Hokuto stations, in just four hours and two minutes.
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