The U.S Navy's deep sea divers and frogmen are some of the most highly trained and specialized personnel in the armed forces. Featured on this DVD are five rare films showing the history of the Underwater Demolition Teams (UDT's) - predecessors to the modern SEALs - and some of the regimens developed to train them and the Navy's deep sea divers.

Special attention is given to the physical effects of diving and the potential hazards that lurk below the surface. Learn about the development of underwater photography techniques, and see early footage of the use of aqualungs by Cousteau. See how UDTs operated during WWII, and see them deploy for combat from a submerged submarine. Watch a film made by the Navy's diving school showing salvage techniques utilized by hard-hat divers. Witness the exploits and accomplishments of those men who braved the fathoms deep

Please note: the films featured on this DVD were originally produced by and for the U.S. Navy. Due to their rarity and age, image and sound quality may vary.

Run time is about 120 minutes in B+W and color. Format is NTSC DVD.