Marine Department launches, in continuous radio contact with the VTC,patrol the main harbour area and its approaches to ensure safety of navigation and other marine activities, as well as to respond to emergencies.

• 海事处巡逻艇负责巡逻主要海港范围和进口航道，利用无线电通讯与船只航行监察中心保持联络，以确保船舶航行及其他海事活动的安全，并在发生紧急事故时，立即应变。