We will be on a Princess Cruise Ship to visit China on November 19, 2010. Prior to the cruise, we have a 3-day tour package in Beijing and staying 3 nights. Once we start the cruise, we will stop in Shanghai on Nov. 22 and Hong Kong on Nov. 28. What type of Visa do we need and how much will it cost, please? When should we apply for our visa since there is a limit for validity of the visa. Thank you.