Ice dragon boating is when you put your dragon boat on skates and propel it across a frozen surface. And, of course, there is ice dragon boat racing. Ice dragon boat racers even have an international federation.
And this weekend, the first Ice Dragon Boat Festival is happening in Ottawa. If you can't make it to Ottawa, there's the Manitoba Ice Dragon Boat Festival coming up on February 25. You'll find more links about ice dragon boat racing at Metafilter.