Hong Kong people's "going north" for consumption opens a new chapter of "two-way travel" The Hong Kong-Zhuhai-Macao Bridge is the only way for "Hong Kong cars going north" High cost performance and diversified choices are the main reasons why many Hong Kong people choose to "go north" For example, it takes 5 to 6 weeks to get a tooth implanted in a public hospital in Hong Kong. A large number of Hong Kong residents come to the mainland for dental treatment every year.