I've got a similar query. I’m a BA Gold Card Executive Club member. I’m flying business class from LHR to MEL, via HKG. I’m arriving at HKG on BA27 at 16.45 on 1st August 2015 and leaving for Melbourne at 00.10 on BA4567 (a Cathay flight) on 2nd August. Since my stopover is over 7 hours, I have arranged to meet a friend for dinner in Central. What I was wondering is whether I am entitled to use the Arrivals Lounge at HKA. If not, is it possible to use one of the lounges airside to freshen up and then go into town?