The Northern Cavern is located north of Vinay del Zexay, within the Zexen Federation. It was originally a mine and scattered mining tools could still be found there, even after it became a storage place for illicit goods.
It is a linear cave that, when followed, leads back outside close to a large lake. From that vantage point, it is possible to see the stranded ship that had collided with Budehuc Castle in the north.
- Gensosuikoden Kiwami Encyclopedia, page 294