I descended into the murky lake water and was immediately greeted by the sight of a slimy green growth all over the underside of my boat’s hull. No wonder it was slower than a herd of turtles. I’ve never done any type of diving like this, so it was initially a bit uncomfortable. Not uncomfortable like having your shoes on the wrong feet, but more like some type of cognitive dissonance since it’s unnatural for humans to breathe underwater.