Similar question.
I am MPO GO, which is OW Sapphire.
Can I go to the other OW lounges in HKG when I take CX flight?
Looks that the other choices are Qantas International Business Lounge and The Travelers Lounge for JL, MH, S7, and etc.
If I have the access, does it worth to visit it rather than using CX lounge.
Thanks