Not the Loch Ness Monster

When we were at Loch Ness 2 years ago I remember being really impressed by the ability of a boat wake to survive on the water. It was at least 5 minutes after the boat had gone that day. This time, I spotted this wake as we were driving along the south shore. The cruise boat had long gone. Compare this with the pictures in the newspaper from the month after our last visit. http://metro.co.uk/2013/08/26/do-new-pictures-from-amateur-photographer-prove-loch-ness-monster-exists-3938074/

 

 We went on the same cruise ship. It is a large catamaran that sends out a big Kelvin wake - I've blogged about that before. http://wigtonphysics.blogspot.co.uk/2013/11/kelvin-wake-on-walla-crag.html

 The wake is made of the traditional V-shape but is also split into individual wavelets. As the boat turns across its own wake, from certain angles these wavelets can look like a series of humps.
                                     
This explains some of the claimed sightings in my own mind but not the "neck-sticking-out" ones.