If you've ever tried to take a dip on a sea day, you've probably noticed how hard it is to find a sun chair or space in the pool. Think about thousands of passengers sharing one tiny pool. Not exactly what you imagine when you think "floating resort." So why are cruise ship pools so small, even on mega ships that carry over 5,000 people? Cruise ship pools are small because large pools would add too much weight high up, throw off the ship's balance, and cost a lot to fill and maintain. Cruise ...