sir/madam, I am travelling to hongkong with jet airways from mumbai(india) to hongkong and intend to

sir/madam,
I am travelling to hongkong with jet airways from mumbai(india) to hongkong and intend to go to macau straight from the airport skypier(ferry) and will be returning the same way to hongkong airport and back to mumbai(india) and will not be entering hongkong city. Do i still need to pre register for visa?

thank you