How safe is it to teach so far away from the West Indies?

I have just recently heard about teaching in the far east. As a christian, can I keep my sanity? I am always desirious of teaching in a foreign country but I think to go this far is a risk? Please tell me something that will help me to come along with my eleven year old son. At first I think I should work for a year then take him. Is there anything to fear?