Not all types of camera batteries are on sale. Videotape is not on sale everywhere in China. Be sure to have batteries that will last the entire holiday. Chinese people generally do not object to being photographed. However, some ethnic minorities do not always like being photographed. When in doubt you had better ask first. Sometimes they will say no. It is strictly prohibited to photograph the terracotta army in Xi'an. You will have to pay a fine and you will lose your film at least.