Rob Worling is an extreme ice skater who likes to push winter sports to their limits and beyond. It's not enough for him to just play hockey in the winter and tennis in the summer. He has to combine them by setting up a tennis court on an ice rink. I find it amusing, but also compelling because I can see it thriving as a competitive sport.
Worling's other adventures on ice include playing ice basketball, ice football, and ice soccer. The last of these adapted sports looks particularly demanding because of the need to dribble the ball and skate simultaneously without falling over.
-via @Figensport