Hi, I'm Funwa and I'm the one to see to get to Cantha. I will give you a quest called Plague in Cantha, but you would have to see Mhenlo to travel there. I am located in Kamadan or as some would call Spamadan. I will have to say that this quest will not improve your kung fu, but it will lead you to a country in which you can do just that.
I shall wish you good luck, but I'm not the one to jinx you either way. I know you will be the hero that everyone will talk about for years to come. I can see it in you. I'm not one to talk alot, when you meet me. However, I leave you this message here for you to understand me.