Out of sight, out of mind. Seems like a beautiful lake ... on the surface.

Sunglasses

I can understand that losing sunglasses is typically an accident. All those cans down there, the paddles, the propane bottle and stand - that's intentional. As Henry Wang says "people are idiots." And, if it was easy to bring somewhere, it's just as easy to take it away and dispose of it properly.

In all my years of scuba diving, I've never seen it as bad as shown in the video. And, remember, this is after the lake had been cleaned up on previous visits.