Water Monster reports in Hawaii
3 cases, 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 · Kohala, Hawaii · 1900
A Japanese observer reported seeing a commotion in the water off Kohala that he believed was caused by a sea serpent with fins twenty feet long.

Water Monster · Honolulu, Hawaii · 1905
William Herbert Melton Ayres claims to have purchased the head of a 78-foot sea serpent from a Chinese fisherman and displayed its bones in Honolulu.

Water Monster · Hawaii · 1855
Witness reports that the master of a schooner arriving at San Francisco reported seeing a sea monster not less than eighty feet long with a head like a common water snake.