As is generally known, different sports and leisure equipment are used on the land, in water and at different times of the year. The rolling sphere is intended to be matched to the largest possible range of uses. Its spherical shape ensures a rolling (rolling about) or sliding motion. By virtue of seals attached to the closure edges, use in water is ensured. Air holes guarantee the supply of air. The fixed seat with seat belts and a head restraint and the housing which is made of impact-resistant and unbreakable material (plexiglass) ensure the necessary safety of the occupant. The parts which can be removed (entrance hatches) may be used separately as sliding discs on snow or else in water. These properties make the rolling sphere suitable for sport and leisure in any type of weather at any time of the year on land and in water. <IMAGE>