Japan–Korea Undersea Tunnel at about ₩100 trillion (approx. US$90 billion), which would produce an extremely low benefit-to-cost result. In 2014, the South Korean Busan Development Institute estimated the undersea tunnel could create ₩54 trillion won (원54T, or US$53 billion) in economic benefits and provide about 45,000 jobs. In an April 2009 editorial, former Justice Ministers Daizō Nozawa of Japan and Kim Ki Chun of South Korea remarked on some of the similarities of the proposed Japan–Korea tunnel to the world's present longest undersea tunnel. The Channel Tunnel runs for 50.45 km linking the United Kingdom and France, and opened in May 1994: At
Cycling in the Channel Tunnel cycle the 100-kilometre round-trip from Folkestone to Coquelles and back again. The journey took around five hours to complete, while wearing full overalls and needing to carry respirators. In November 1993, journalists Nick Dutton-Taylor and Damon Brown used the same Saracen bicycles as other construction workers to cycle into the tunnel for an article in "Mountain Biking UK". They were trained and accompanied by the cycling trainer Clive, but not allowed to go the full way through. On the night of 2/3 December 1994, a group of professional and semi-professional cyclists went road bicycle racing from London to Paris in