Hello...
I'm Thai people.. I would like to visit Hong Kong but the problem is some friend of me they try to go but they could not entry,,, So do I need to make a visa for make sure that I can entry to Hong kong. becasue I not want to try to go and then can not entry so that mean I will lose the money for buy a ticket..
Please tell me how to do and what I have to bring..

Thank you very much...