Hugin Sea
From Halopedia, the Halo wiki
The Hugin Sea is a body of water to the north of the Edda supercontinent on the Human colony, Harvest [1].
Trivia
The name Hugin comes from Norse mythology, which means "thought". Along with Munin, which means "memory", they are a pair of ravens associated with the Norse god Oden. Oden would send them out in the morning and they would travel the world, gathering information, returning in the evening and perch on his shoulder sharing the news they gathered.