360° panorama by wongchichuen.
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 The Cross-Harbour Tunnel is the first tunnel in Hong Kong built underwater. It has become one of the most congested roads in Hong Kong and the world. The tunnel was constructed using the Immersed tube method. The 1.8 km-long tunnel crossing opened in 1972, providing the first road link between Kowloon and Hong Kong Island.海底隧道是香港第一條橫跨維多利亞港海底的行車隧道,也是香港極度繁忙的道路之一,隧道以沉箱方式建成,全長1.8公里,於1972年通車。http://en.wikipedia.org/wiki/Cross-Harbour_Tunnel