City of Sails
Sea of Silt
Like seas of water, the Sea of Silt is home to traders, pirates, monsters of unimaginable horror, and death by dehydration. The silt itself is a remnant of the wars of magic which destroyed much of Athas, and behaves in ways unlike other solids, neither compacting nor blowing away. Incapable of bearing the weight of a human, only giants or specially designed silt skimmers can traverse it, and even then, only the shallows.