Just to add, I've been to Tibet. I didn't have any permissions beyond a standard Chinese tourist visa, you can see all sorts of things if you are willing to take a risk and play the ignorant foreigner if caught....
Once you are in Tibet/ past checkpoints, no one checks as they assume you can't be there with out having got a visa. This was a few years a go though but I am sure somewhere like the Thorn tree would be able to confirm the current situation on the ground.
Like you say though, only about a third of historical tibet is in the TAR, the rest is in regular China and Amdo is supposed to be great. If you aren't fixed on Beijing then I would def consider swinging south through Sichuan, Yunnan etc. to end in Hong Kong or SE Asia.
Just to add, I've been to Tibet. I didn't have any permissions beyond a standard Chinese tourist visa, you can see all sorts of things if you are willing to take a risk and play the ignorant foreigner if caught....
Once you are in Tibet/ past checkpoints, no one checks as they assume you can't be there with out having got a visa. This was a few years a go though but I am sure somewhere like the Thorn tree would be able to confirm the current situation on the ground.
Like you say though, only about a third of historical tibet is in the TAR, the rest is in regular China and Amdo is supposed to be great. If you aren't fixed on Beijing then I would def consider swinging south through Sichuan, Yunnan etc. to end in Hong Kong or SE Asia.