The wastes of Athas stretch for miles in every direction, largely featureless but for sand, wind, and relentless heat.
Effect: Sandy wastes are covered in rolling dunes that can hide bandits, raiders, and desert predators. A small dune covers a 3-by-3-square or larger area.
Usage: Merciless sunlight is the only thing more plentiful on Athas than sandy wastes. Within them, small dunes are ideal ambush spots for creatures hardy enough to lie in wait while covered with sand.
Published in Dark Sun Creature Catalog, page(s) 136.