I want to visit my GF and meet her parents in Shenzhen in late October and early November.

I would like to stay there for 4 days then fly her to Phuket for 7 days and then return to China for a further 7 days of sightseeing before flying back home to Northern Victoria. i was wondering what sort of visa i need and is it better if i come to Melbourne to apply rather than a postal application.

Thanks
Craig