Wikipedia
Skate sailing is a sport moving over ice standing on ice skates utilizing the force of the wind. A small sail is held in once hands or leaned against with the whole body. Using a metal blade under foot and the height of the ice skates is of much importance in being able to steer as much it is acquiring the technique to gain an edge.
Skate sailing is a sport with a long tradition probably as old as ice skates themselves. It is not to be confused with its modern variation Windskating which is inspired by Windsurfing and makes commonly use of a skateboards or inline skates.
Skate sailing is using a sail and the wind to propel oneself across any relatively flat, hard surface. Skate sailing can be done in summer on roller blades, roller skis, cross skates, etc. Winter sailing can be enjoyed on downhill skis, snow blades, ice skates, or any other sliding footwear.