So I am debating visiting Shanghai from USA from 12/28 to 1/2... I have a friend living there who speaks the language and would be off the weekend, as well as 12/31. I might have to tour myself a little bit the other days but definitely don't mind that. So i'd have 5-6 complete days there, I am at the very start of research, so my basic ?'s...
I'm in my late twenties, enjoy physical activities as well as cultural stuff, I don't mind walking around 18 hours a day and only sleeping 5-6. Did that in 7 unforgettable days in Tokyo.
As always thanks to everyone who replies.