Car ferries cross from Kowloon to Hong Kong which was the way we first made the journal in 1968. Since then several tunnel have been built to carry much more traffic. If you look closely on the left side of the photo you can see a passenger jet lining up to landing at Kai Tak. On approach it will skim over the rooftops and land on a runway to points right out into the ocean. That airport is long closed now.