Hi I am going to guanzhou and i have taken single entry chinese visa. Do i need a seperate visa to go from guanzhou to shenzhen. I believe since both cities are part of china so one single entry visa should be sufficient to visit both places. After shenzhen i plan to visit hongkong and i have found for trip of less than 14 days duration, visa for hongkong is free on arrival. Please suggest if it is not so.