all these sightings are based on a photo yonks ago thousands have been spent on boats and underwater sonic equipment over the years with nothing showing up I have been up there myself and had a sighting but it turned out to be a dummy at the cafe at the end of the loch, a load of tosh I think
If you think about it logically it is impossible for a 'nessie' monster to exist singly for an extended period of time in an enclosed water body. Where did it come from, did it appear out of thin air? With the electronic detecting equipment it has already been confirmed that there would not be enough fish in the lake to sustain even one monster of the postulated size.
I do like the legend however and long may it last.