I ,my wife and my daughter intend to visit Hong Kong for 15 days as a tourest

I m 60 years (plus) and my wife is 50 (plus) and my daughter is 30 years living in Islamabad (Pakistan) having our own business of Import & Export, intends to visit Hong Kong for 15 days only.we have our valid Passports and have a suffucient funds to spend during our stay in Hong Kong. What are the Visa requirments for us. Plz reply.
Mumtaz K. Qureshi