"The Water Cube pool is close to 10 feet deep. That's 3 feet deeper than the pools of the past. The lane lines that separate swimmers are called wave eaters because they dissipate turbulent water. The goal is to make the water as flat and clear as possible, despite the churning that swimmers create.
An indoor setting also helps, along with temperature, humidity and lighting control. Wide decks with seats sharply cascading back give swimmers an uncrowded sense of space. That can energize athletes, like American Dara Torres, who calls the pool "awesome."
Source: NPR
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