This video of champion freediver Guillame Nery doing what can best be described as BASE diving is amazing enough without considering that it was shot by Julie Gautier while holding her breath.

I love his ascent — instead of just kicking for the surface, he took the time to do totally awesome ninja climbing dynos all the way up. It's beautifully produced.

Freediving definitely qualifies as an ultra green extreme sport — it's just you, a breathe of air, and the depths below.

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Shea Gunther is a podcaster, writer, and entrepreneur living in Portland, Maine. He hosts the popular podcast "Marijuana Today Daily" and was a founder of Renewable Choice Energy, the country's leading provider of wind credits and Green Options. He plays a lot of ultimate frisbee and loves bad jokes.

Watch: Reverse BASE jumping
Professional freedivers Guillame Nery and Julie Gautier turn the concept of the BASE jump on its head to plunge hundreds of feet under the ocean.