I cycle, done a few charity events and use my towns velodrome, as well as use it as getting around.
Also did karate since I was 7, having to stop doing it recently because of work/college.
A sport... You basically have a stick with a small net at the end of it... the point of the game is to shoot the ball (a small, rubber but hard ball) into a net... It's like a mix of soccer, football, and hockey.