Traveling in a Cruise ship to honkong, Shangai and Tianjin

Hi. I live in Venezuela and use a Venezuelan passport. In may i will be cruiseling in a cruise ship (Golden Princess) and i have 3 ports in china (honkong, shangai, tianjin) standing 6-8hours max in every port, my question is, what type of visa do i need and what documents should bring to the embassy for the application?

Thanks for your help