Diver support vessels
The mine countermeasures service has four diving vessels: the Hydra, the Nautilus, the Cerberus and the Argus. They are used as a platform for divers.
The Hydra is different from the other 3 diving vessels. It has a bow screw and is 10 m longer, providing space for 22 diving trainees. The ships are equipped with all modern communications equipment and a recompression tank for several people simultaneously.