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No footage of Nessie has been found on the camera, but one of the submarine's engineers was able to develop a few images of the loch's murky waters.

"We have a freshwater stream running through garden which goes from loch to sea so we very often see them around - just not in the kitchen."

A combination of prevailing winds and the rotation of the earth drive litter up the loch to create what is known as the Arrochar litter sink.

The vehicles were later discovered to have been swept into an inland loch.

Transporting Atlantic salmon from Scottish lochs, Norwegian fjords or Chilean waters to Chinese markets involves complex logistics and significant environmental costs.