Loch Ness is very deep and long. Like searching for a needle in a haystack. Things could hide in that lake.
If nothing else, Nessie, is one heck of a tourist attraction.
Others have picked up on the idea.
A town in BC (province in Canada) has one too. Ogopogo or something. Never been there. (don't seem to care about the things around me. Guess I am one of those grass is greener people)
Town in Hokkaido Japan also has one....Kussie, Lake Kussharo. Went canoeing on that small lake, it is quite deep and the water seems black. There is a strange under tow. I did NOT enjoy being on that lake. Something could hide in there too.
Inside the world of cryptid tourism.
www.insidehook.com