In a water jet massaging apparatus comprising a tub which is covered by a flexible elastic support sheet or foil for supporting a patient, a nozzle carriage with a nozzle and carriage drive arrangement disposed below the support sheet or foil for directing a water jet onto the support sheet, a rigid or at least non-elastic support element is disposed between the flexible elastic and the nozzle carriage so as to prevent the elastic support sheet to come into contact with the nozzle carriage and the carriage drive arrangement.
