When diving in the ocean, you must consider how much pressure you will experience from diving a certain depth. From the atmosphere, we experience about 14.7 pounds per square inch (psi) and for every foot we dive down into the ocean, we experience another 0.44 psi in pressure. How far (in feet) can you dive without experiencing more than 58.7 psi of pressure on your body?
If you've ever taken SCUBA lessons you would know that each 33 ft is another ATMOSPHERE of pressure increase.....Just an FYI.....
58.7-14.7 = 44 psi allowable increase
44 = .44 * x
x = 100 ft maximum allowable depth to NOT exceed 58.7 psi