A clearance diver was originally a specialist naval diver who used explosives underwater to remove obstructions to make harbours and shipping channels safe to navigate, but the term "clearance diver"
A US Navy work diver is lowered to the sea bed during a dive from the USNS Grasp (T-ARS-51) off the coast of St. Kitts.
Preparing to raise a mine from the seabed
US Navy explosive ordnance disposal (EOD) divers
Lionel 'Buster' Crabb, using the DSEA at Gibraltar, April 1944.
Commando Frogman Force was a historical British amphibious special force unit, which is the predecessor of the current Special Boat Service. Its members were largely drawn from the Royal Marines. They
British, Royal Navy frogman in August 1945, here equipped with a Davis apparatus, a rebreather originally conceived in 1910 by Robert Davis as an emergency submarine escape set