Underwater Photographer*: send at least one photo every three months.
You get one free quarter for every photo published in the magazine, stacking just like articles, plus a photo credit. Photos on your own member page don't count toward free quarters.
Your badge comes with your first photo published in the magazine: Deep Lens for underwater shots, Splash Lens for action and surface shots. Shoot both and you can earn both.
*It doesn't have to be underwater. Shots from the boat, at the surface, at the water's edge or riding a wave all count, as long as water is at the heart of the picture. Mermaid shoots by the water count too.