Ngaru

In a tradition from Mangaia in the Cook Islands, Ngaru (wave) was an ancient hero who lived in Avaiki (Hawaiki). His mother was Vaiare and his grandfather, Moko (the great lizard). His wife was the beautiful Tongatea. To prove his prowess, Ngaru conquered the monsters of the deep, descended to the underworld and returned to the land of the living
Found on http://en.wikipedia.org/wiki/Ngaru
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