Etsuak was a desert planet with large ravines. Residents of Etsuak lived in ravine cities. The planet had an old west feel, as it has only been recently begun terraforming, melting the planet's southern ice cap. A large central sea exists as a result of the melting. The water poured out into the ravines. The planet has a number of ship building facilities owned by Roseas Fleet Yards subsidiary Heiko Civil Engineering Systems.