Great to see such a useful thread! I have a question regarding the 72 hour (no visa required) conditions. I am flying into PEK from HKG arriving at 20:00 on March 23rd. My flight leaving PEK is March 26th at 17:00. I understand that I will not need a Visa in this situation (have a valid Canadian Passport), is that correct? And will I be able to travel to visit the Great Wall without a visa as well?