Traveling via ferry directly from Hong Kong International Airport without clearing traditional Hong Kong immigration is made possible through the Skypier terminal facility, which caters to transit passengers arriving from international flights. To utilize this service, passengers must ensure their airline and ferry operator participate in the baggage-forwarding alliance, check-in for their ferry before clearing the main arrival hall, and avoid collecting checked luggage in Hong Kong. The high-speed ferry then transfers travelers straight to ports in Macau or mainland China.