The Artorian safe haven situated underwater
The Artorian safe haven existed as a shielded dome structure, situated on the sea bed, several kilometers beneath the surface of the Great Sea that surrounds Artorias. King Caled Galfridian gave the orders for its construction during the time of the Galactic Civil War, with the purpose of safeguarding the Artorian population amidst rumors that the Galactic Empire was intending to broaden its influence into the regions of the Outer Rim. By the time the shelter's construction was complete, the civil war had concluded, and the Empire no longer posed an imminent danger.
Despite this, the haven found its purpose during the Yuuzhan Vong War, specifically after the Battle of Artorias, when it functioned as the central base for the Artorias resistance.