Water Monster reports from the 1690s
1 case, best-documented first. Page 1 of 1.
We map claims, not creatures. A case is what some source says someone saw or heard, with the link to that source. It is not proof that anything was there, and a retelling counts once, not as a second sighting.

Water Monster · Essex County, Massachusetts · 1690s
A visitor from New England was told of a sea-serpent coiled on a rock at Cape Ann, where Indians dissuaded Englishmen from shooting it.