Selkie

Shapeshifting seals who become women and are known for their beauty. Human men fall in love with them, and live together until the Selkie longs for the ocean again and finds her seal skin to return to the sea. Mostly friendly and sometimes vengeful.

Years of Sightings: ?

Locations: Orkney & Shetland Islands off of N. Scotland, Faroe Islands,
Iceland

Author or Sources:  Wikipedia