Flotsam

Out on a ship, sailing the sea, there was crate and inside was tea, the ship hit a reef and off the crate fell, smashed on the rocks as you can tell, then cargo floated away, carried by the tide to the docks that day the local sailors did gather around to stare at the detritus floating there.

On top of the water, is where it floats. The lingering detritus, from a shipwrecked boat.