That didn’t mean the depths wouldn’t be hell for their bodies. The added pressure had become noticeable at only ten feet down. At a hundred feet, they would be breathing harder just to compensate against the squeeze. Anything over a hundred and fifty feet required even more specialized qualifications and prolonged training to withstand. By two hundred and twenty feet, even the oxygen in their canisters would begin to turn toxic. Cove and her team were traveling down three hundred and twelve feet.
