Best transportation from HKIA to Kai Tak cruise terminal on saturday december 7th

Hello,
Please could someone tell me what is the recommmended transportation (train, bus, Uber, taxi..) for 4 french seniors landing in HKIA around 4pm30 on saturday december 7th to reach Kai Tak cruise terminal. We have a reasonable amount of luggages (2 large and one medium sizes).
Thank you in advance.
Zac