Thank you both for your feedback. We filled out the pre-registration for dad, so hoping he feels energetic enough to go visit the city for a bit. I'm curious about one other thing. We have carry-on luggage that we don't want to take with us into town. Any suggestions on where we can store the luggage at the airport or in Kowloon while we walk around?
There is a baggage storage facility at the airport:
https://www.hongkongairport.com/en/p...aggage-storage