Here's how deep humans have dug underground. The typical grave is 6 feet down. Most Olympic swimming pools are 10 feet deep. Nile crocodiles dig burrows as deep as 39 feet deep. The Paris ...

The diving pool is a minimum of 16 feet deep, 60 feet in length and 75 feet ... two 3-meter springboards and three level--5 meters, 7.5 meters and 10 meters-diving platforms.