Travel To Hong Kong

I am an Indian citizen with an Indian passport working in Dubai as resident there. I have come to (Ghoungzhou) with and F type visa having 2 enteries. I want to know whether i need any seperate one to go to Hong Kong for a one day trip. I have heard that Indian passport holders can stay in Hong Kong for 14 days without a visa. Please confirm. I am plannin to go by bus to shenzen and transit to Hong Kong at Lohu(Shenzen) immigration. So will i have to present any other document other than my Passport. Please confirm.
Thank You