A strange wave breaking on the still waters of Loch Ness is thought to be the mysterious Loch Ness Monster by the amateur photographer who captured the image.
David Elder, 50, said a “solid black object” gliding beneath the surface caused the unusual ripple when the lake was otherwise still.
Mr Elder, from East Kilbride, said he was focus on a swan at Fort Augustus on the south-west end of the Scottish Highlands lake when he spotted the "creature", according to The Mirror.
Mr Elder said: “Out of the corner of my right eye I caught site of a black area of water about 15ft long which developed into a kind of bow wave.
"I'm convinced this was caused by a solid black object under the water. The water was very still at the time and there were no ripples coming off the wave and no other activity on the water.
"Water was definitely going over something sold and making the wave. It looks like the sort of wave perhaps created by a windsurfing board but there was nobody on the Loch at the time, no boats, nothing.
David Elder doesn’t exactly know what he snapped while at the Fort Augustus end of the loch but is certain he can’t explain the picture by conventional means.
‘We were at the pier head at Fort Augustus and I was taking a picture of a swan at the time,’ said Mr Elder, from East Kilbride.
‘Water was definitely going over something solid and making the wave.’
The image was taken by David Elder at Fort Augustus, at the south-west end of the 23-mile-long body of water in northern Scotland
It shows a long bow wave apparently caused by some sort of disturbance on the surface of the loch.
Mr Elder, from East Kilbride in Lanarkshire, was able to take still photos as well as filming a video of the mysterious scene.
Some scientists have wondered if the sightings might be caused by an underwater wave which is known to sometimes occur in deep, long, cold lakes, like Loch Ness. Standing waves, also known as seiche, can be caused by the wind piling up a layer of warm water at the end of the loch which forces the underlying cold layer to the opposite end. The wave is not visible on the surface, but moves underwater with the interaction of the layers. Such a wave might be powerful enough to push debris to the surface that might look like a strange animal.