The tides of Khaas are generally fairly stable; three moons pulling in several directions tend to make the seas nearly tideless. The range of the tides varies, as each moon is visible in the sky, increasing as they appear and decreasing when they are out of view. However, when all the moons line in the sky the tides ride exceptionally high, often three or four times their normal heights. When the moons are gone from the sky, the tide gets lower, until it is several hundred feet below the normal tidemark. At that point it will again progressively rise towards the normal tide range as the moons reappear in the sky. Coastal areas have adapted by having floating piers that move with the tides, or by having two-part tiers, with the first part attached near the normal tide level and the second part a floating pier chained to the dock. In these cases, the ends of the fixed docks will often have cranes and primitive lift-elevators to move cargo and passengers.