The Isenvee is the sea located north of Fjerda. The Stelge River enters the Isenvee at Elling.
According to Fjerdan folklore, the northern seas were historically warmer.
A water spirit was a spirit of the Isenvee before it was trapped in Velisyana.
Isen means "ice" in Fjerdan. Vee may be inspired by the Dutch zee, meaning "sea".