www.bbc.co.uk/news/business-59401199

"A pair of sleek, winged machines are "flying" - or at least swimming - beneath the dark waters of the Faroe Islands in the North Atlantic.

Known as "sea dragons" or "tidal kites", they look like aircraft, but these are in fact high-tech tidal turbines,...www.bbc.co.uk/news/business-59401199

"A pair of sleek, winged machines are "flying" - or at least swimming - beneath the dark waters of the Faroe Islands in the North Atlantic.

Known as "sea dragons" or "tidal kites", they look like aircraft, but these are in fact high-tech tidal turbines, generating electricity from the power of the ocean.

The two kites - with a five-metre (16ft) wingspan - move underwater in a figure-of-eight pattern, absorbing energy from the running tide. They are tethered to the fjord seabed by 40-metre metal cables." Show more