I'm travelling to Sanya (China) via Hong Kong next week on Cathay Pacific then China Southern (don't ask, it's what the company travel agent came up with) - J on Cathay but Y on China Southern. I have a 4 hour layover at Hong Kong on the way out and would obviously like to get into a lounge.

Will my BA Gold card get me into the Cathay lounge? If not does BA operate its own lounge at Hong Kong I can get into?