In Irish mythology, Niamh is the daughter of Manannán mac Lir, a sea deity in Irish mythology, and he is said to own a boat named what?
Niamh (mythology): In Irish mythology, Niamh is the daughter of Manannán mac Lir. Manannán mac Lir:  In the tales, he is said to own a boat named "Scuabtuinne" ("Wave Sweeper"), a sea-borne chariot drawn by the horse "Enbarr", a powerful sword named "Fragarach" ("The Answerer"), and a cloak of invisibility ("féth fíada").
Scuabtuinne