Suddenly a large plastic garbage bag is thrown into it. It floats amidst the murk, hits the surface, and bumps clumsily into the base of a tree. Silence; until the plastic bag lunges and clings to the tree's branch.
Suddenly, a large plastic garbage bag is tossed into the water. It bobs around before hitting the surface and bumping awkwardly against the trunk of a tree. A moment of quiet follows until the bag latches onto the tree branch.