Selkies are said to live as seals in the sea but shed their skin to become human on land. They are mythological creatures found in Faroese, Icelandic, Irish, and Scottish folklore. Stories concerning selkies are generally romantic tragedies. Sometimes the human will not know that their lover is a selkie, and wakes to find them gone. In other stories the human will hide the selkie's skin, thus preventing it from returning to its seal form.
God of the sea, Manannan Mac Lir predicts the weather and rules over the land of Tir-na-Nog. He possesses several objects of note including a ship without sails that follows his command, a cloak that makes him invisible, a helmet made of flames and a sword that cannot be turned from its mark. He rides over the sea in a chariot pulled by dolphins.