Imagine being able to go fast across water! Waterskiers do it all the time. Waterskiing is a water sport. People water-ski on lakes and oceans.
Water skis are two long boards that connect to your feet. Some people only use one board for both feet.
To water-ski, a person has to be at a lake or other place with water. He or she has to be wearing skis. The person holds onto a rope with a handle. This rope connects to a boat. The boat has a motor. It speeds up. As the boat speeds up, the person keeps holding onto the rope. Then, the person stands up on the skis.
The person races across the water!