The sea was a large body of water that was found west of Alagaësia. Many exotic creatures, such as giant sea serpents, like the one Fundor fought, could be found in this body of water. There were many islands in the sea, such as Vroengard, Beirland, and Sharktooth Island. Most were uninhabitated. Pirates roamed the sea, pillaging ships and coastal towns. Ports like Teirm were built for sea travel.
There was also the North Sea, a smaller stretch of water in the north west of Alagaësia. It is not known whether this connects to the sea in the west. This is the body of water that Ceunon was built upon. It was also the first sea that Horst had ever set his eyes upon.