Meh, it seems to me that we call lots of activities sports that maybe aren't all that competitive. read more
If NASCAR or the America’s Cup qualifies as sport, then this certainly sounds like sport. I don’t know much about kite surfing (I don’t like getting soaking wet), but I suspect that kite surfers could quite fairly consider it a sport. Kite flying can be considerably more physical, and more competitive, than it sounds. read more
A small writeup on Kite Flying, compiled from various websites, is as follows: History Between A.D. 960 and 1126, kite flying became a popular sport in China. The 9th day of the 9th month was a day when kites were flown to banish evil. read more