Just beneath that roiling blue, there’s a whole universe of creatures and plants, predators and prey, mysterious beauty and danger that seems so far removed from our land-walking ways. The line separating our world from the one undersea is thin – and these clever photographers have done a wonderful job reminding us just how close (and how different) the two are!
1. Argentina

In a breathtaking moment of surprise, we see a massive whale drifting silently below the comparatively tiny fishing boat at center. This angle highlights the mystery and grandeur of the ocean spectacularly, starting off our collection on the right foot.
2. Papua New Guinea

There are few things in nature more incandescent, more bursting with the mutable dynamics of life than coral reefs. This shallow photo reveals an absolute cornucopia of color and shape resting just beneath a pair of native fisherman.