Hong Kong and Macau - HKIA gate help.

Looking at the airport PDF and google map. I plan to spend some time in the plaza lounge, but trying to decide what one. Our departing gate is 521, but on google maps, it doesn't look like there are any jetways at 521.

Edit: found thread discussing gate 521. So only question is what lounge to use.

Thanks.

Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

Gate 521 is a bus gate. So the closest paid Lounge you should use is the plaza premium lounge near gate 1