I now have a 6 hour layover and thinking of simply taking the A21 r/t and walk around Kowloon, not looking to use the AE. But it all depends what time the last bus heads to HKG if it will be worthwhile, not interested in the Night buses

Also does anyone know if CXs Biz lounge is open 24 hrs, if not what time does it close? As Id like to leave my carry-on there, before heading into Kowloon but wont go if I cant get it when i get back to the airport obviously and not interested in taking it with me

Inbounding into HKG with a connecting flight after midnight

TIA