We're inspired by this article on deep water diving.
"The human body in its natural form (without weights or wetsuits) is the perfect buoyancy for deep-water diving. We’re able to float at the surface and yet can dive down to great depths while exerting little effort. From left, swimmer Peter Marshall, Hanli Prinsloo, and the author."
Read more here.
Photo Jean-Marie Ghislain/ghislainjm.com