For centuries human beings have wanted to explore the underwater world

Diving without using breathing apparatus

The first known fully operational submarine was invented in the 1620s by the Dutchman, Cornelius

It is estimated that there are over 6000 shipwrecks off the coast of Cornwall. According to local

Diving is a chance to visit the exciting but dangerous underworld of the sea

First used in the First World War, the human torpedo was a formidable force in underwater warfare