Enter and exit PVG during 4 hour layover to take Maglev?
Hi all --
I have a really short layover SFO-PVG-SFO for a mileage run coming up, and and ground time is 6:35pm arrive, 12:15am depart. If I'm a US citizen, have a visa for China, and no carryon baggage (or a really small backpack), is this feasible for me to exit quickly, take a roundtrip on the Maglev train, and come back with time to sit in the Air China lounge?
For a $12 ticket, the Maglev is probably the only thing I would enjoy going to see, and otherwise I'd be doing not much of anything in the airport anyway.
But the question is, is immigration, customs, security (x2) reasonable to do in 4 hours?
Thanks!