Hello mr david,pls i am a nigerian but south african by birth and i am presently in nigeria with my south africa passport. And i wish to visit my wife to be in hong kong. She is a citizen. Do i need a visa?,and what is required of me?..also, what is the cheapest airline to hong kong directly from lagos nigeria?..and wil i need a transit?..pls treat accordingly as a matter of urgency.. Thank you.