The ambitious mission preparing for human life underwater
Ocean engineering and technology company DEEP is on a mission to make humans aquatic, which is why it's setting up an underwater training facility in Chepstow. The 50-acre site, with a controlled body of water, will be dedicated to saturation diving - a technique that allows people to live and work underwater for longer.
BBC Tech Now's Andrew Rogers visits the former quarry where new technology is being tested.
This video is from Tech Now, the BBC's flagship technology programme.




















