Originally Posted by
rkkwan
First, there is no longer ferry service between SZX and Hong Kong. Just take direct coaches. And even when there were ferries, you still need a visa to go through Chinese immigration before taking the shuttle bus to the pier and then go through immigration aging in to exit China. No "airside" transfer and no visa-free transit.
I'm pretty sure TWOV would apply in this case; the OP would get a diamond shaped stamp at PVG, PEK, CAN, or even SZX itself if he ends up on one of the few international flights into SZX. But, he might need to book an onward airline ticket (e.g. PVG-MNL) in order to trick the system. But, frankly, I'd be surprised if e.g. LAX-PEK-SZX is cheaper then one of the dozens of LAX-HKG options (e.g. try the bucket shops in Korea Town). And, if the fare difference was less than $200, I'd go with the HKG option in a heartbeat.