Undvik is a large, desolate island in the southwestern region of Skellige, formerly controlled by the prosperous Clan Tordarroch. The island was completely devastated and abandoned by its human population following a catastrophic attack by an Ice Giant. It now stands as a frozen, haunting wasteland of ruined shipyards, shattered villages, and massive bone piles left by the monstrous entity. The landscape is incredibly treacherous, filled with deep snowdrifts, unstable ice bridges, and aggressive harpies nesting in the shipwrecks.