The RV Tonn is a 7.9m Cheetah Catamaran which has been configured for very shallow water survey operations as part of the INFOMAR programme. The RV Tonn, is named appropriately after the Irish for wave, as it both operates on the waves and uses sound waves to investigate the depth and nature of the seabed. It is a new state of the art vessel, only 8 metres in length, but purpose built to carry out very shallow survey work.