I also played kite surfing in Shenzhen, but I learned it from my friends. I usually play in Shenzhen or Shantou, Shanwei and Huizhou. As far as I know, there is no kite surfing club and no certified coach in Shenzhen. They are amateur coaches without a fixed place. It is recommended to study in Shantou or Hainan. I wish you an early learning. You can play together and communicate more.