Originally Posted by
B-HQC
Yes. After you are done inform the front desk that you will be going into town. They will provide a pass for you to backtrack through a transfer point. The Arrivals Lounge, should you have access, does appear to be a more convenient option though.
I am not sure how HKG's design allows for this. It allows arriving pax to transfer to the departures level but I don't recall you being able to freely transfer from the departures level to the arrivals level...unlike airports in the US.