The TURTLE SWIMS!!! Seriously, that is some clear water! ...no. You could not pay me enough to eat anything cooked on that. Not going to happen. I'm all in favor of reusing stuff to keep it out of landfills, but you could NOT clean that enough to make me want to eat anything cooked on it. Huh. That is interesting. I suspect that is actually a mine house, and the protrusion heading down is part of the minehead-shaft...