An American professor has completed the lung-bursting feat of swimming the entire length of Loch Lomond - in just 12 hours.
Michael Johmann, from Louisville, Kentucky, made the swim from Ardlui to Balloch in 12 hours and 3 minutes.
He decided that he wanted to swim Loch Lomond after finding out that there were very few success stories, unlike the English Channel, which he swam back in 2014.