The Xaril Coast is no so much a landmass as it is a giant sheet of ice, coating much of the area around Dûnathel's north pole. The ice is too thick to even tell if there's land proper underneath, or if the whole area is simply ice floating on the Thestron Sea. The nearby Stormwall sends strong air currents racing across the ice, ranging in strength from stiff breezes to severe straight line winds. Being so hostile of an environment to life, Xaril is largely uninhabited by any sort of life, with the only residents being animals adapted to the severe cold, which live near or on the fractured edges of the coastline so as to access the ocean, which is the only source of food in the area.
Visiting the Xaril Coast is widely considered a fool's errand due to the extreme environment. Most ships that venture there either limp home earlier than planned or simply never return.