This question may have been asked in the past (my apologies!) but I'd like to find out updated information. My travel plans include a week in China followed by a week in Tibet. I'm flying into Beijing. I'll fly back to Chengdu from Lhasa and then return to USA. At immigration in Beijing, if asked about my intended stay and travels in China, should I mention that I'm going to Tibet? I'm going to be with a large group during the week in China so we are traveling together the entire time. The group returns to China after the week together. I plan to stay back an extra week and visit Tibet. I am not sure what I should inform at immigration?