And then there's "Champ" in Lake Champlain.
Several years ago, while walking on the shore of Lake Champlain, I heard the splash of a large animal jumping into the lake, but I couldn't see what it was, as it was behind some bushes. By the time I got to the site, it had vanished.
I assumed the animal was a seal, but my sister-in-law's father, a local resident, told me that there are no seals in the lake. So it might have been Champ.
There was “something” just under the surface of the water on Lake Champlain that I and others saw. It never broke the surface, but it was going against the waves and leaving a wake. A boat went out to check it, and the wake was gone. Only about 30 feet deep in that area. But there definitely was something. Like to believe that it was Champ.