Water running is an exciting alternative for traditional swimming, water aerobics and water gymnastics. The aiding equipment for water running is a belt which positions the runner in an upright position in the water without any unnecessary movements. Due to the resistance of water we go through more trouble for performing the movements than on dry land, while not putting any strain on our joints which go through enough trouble in our daily life. Half an hour of running in the water has the same effect as two hours of intense running on dry land. Water running develops one’s aerobic capacity, increases the strength of muscles, improves the cardiovascular activity and accelerates metabolism. Water running is feasible and suitable for everyone, the elderly and children, sportsmen and hobby sportsmen. Water running is especially suitable for overweight people, people who suffer from joint pain and for rehabilitation treatment.