Dark Sun: The Scorched World of Athas
Sea of Silt
A great dust sink that extends into the unknown reaches of the world, Athasians consider the Sea of Silt impassible. Silt Skimmers and wader can skirt the shoreline where the dust is shallow, but traveling deeper runs the risk of monsters, drowning, and gray death – suffocating in airborne dust. Thus, this eastern edge of the Tyr Region lies almost completely unexplored.