China multiple Visa

Hi,
I’m Indian and holding the Indian Passport, next month I’m planning New Delhi(India) to Guangzhou (china) by flight, from Guangzhou by train going to Hong Kong I will stay there for 4days & next go to Macau by ferry I will stay there for 2days,from Macau I will go Guangzhou by train and stay there for 3days. From Guangzhou back to New Delhi (India) by flight. Now need to know do I need multiple visit visa of the People's Republic of China?? And need to know for India’s its free visit for Hong Kong & Macau??

Regards,
soma