It must have a minimum depth of two meters. The eight lanes used in Olympic competition have to be at least 2.5 meters wide. How deep is the Olympic swimming pool in Paris?

Its depth is a little less than the height of Chicago's Willis Tower, by about a hundred feet or so. It also holds by far the most water of the five lakes, with 2,903 cubic miles of water.

A safe dive depth for modern, Los Angeles-class submarines in the U.S. arsenal to be roughly 1,500 feet — with a maximum descent distance of around 3,000 feet.