The underwater and whirling massage bath tub OCEAN is used for massage treatment of the whole body or of its parts, using underwater application of water stream, either by jet or massage jet mounted on hose. This type of massage produces mechanical and thermal effects. Adequate bath and water stream temperature causes muscle relaxation. Water stream pressure results in relative heat-up of muscles, with both neural and metabolic effects applied. This type of massage is used in treatments of post-traumatic states, muscle and joint injuries, insufficient blood circulation in extremities, ischialgia, spastic and atonic polio and obesity.