Personal water craft is a kind of a motorboat with up to 4 seats. Passengers using personal water crafts sit on top of a hull, not inside, as it is the case with regular motorboats. Such water crafts are powered by internal combustion engines, which co-operate with special pump jets spewing streams of water out of the water crafts, turning them into power that sets the water craft into motion. Using such vessels is a great way of recreation and having fun, and also one of the ways of doing water sports. The fastest personal water crafts are capable of speeding over 110km/h.