Chris Lemons, a saturation diver from England, is in the rare position of having witnessed his own death. All roughly 40 minutes of it were recorded on video, which he watched the next day aboard the ...

Beneath the surface visibility is nearly nonexistent, dark, cold, leaving divers to trust in their crew and training to perform critical work that keeps navigation open – both in the past and today.

This video explains how commercial and saturation divers work safely under immense ocean pressure. From breathing systems to pressure chambers and diving bells, discover how they manage risks that ...