Trip itinerary & entries.

I am planning on travelling to China on a tourist L type. During my trip I hope to visit the following cities: Beijing, Harbin, Xi'an, Chengdu, Chongqing, Guilin, Zhangjiajie, Fenghuang, Shanghai and Sanya (Hainan island). For my trip itinerary I understand that I must provide hotel bookings and my flight details for coming in and out of China. I am planning to use flights within china to travel to most of these cities, will I need to provide these flight details? Also I am not leaving mainland China but I would just like to confirm that it is only a single entry visa I would need for visiting these cities? Even though I will be going through multiple airports.