Unfortunately one of our marker buoys was lost to a recent storm. The heavier weight of the added chain, which we hoped would keep the mooring fixed, indeed made it too fixed, so that the rope first ate through the rubber hose chafe protection, then ate through the rope. We dove the mooring yesterday and as soon as i moved the chain to try and sort it out, my visibility went from pretty good to absolute zero in about two seconds! This demonstrates how important situational awareness and trust in your team are, as when i was working with the chain, i could see nothing and could not focus on anything else but that. When i emerged from the cloud of silt and rust, quite disorientated, there was my teammate, patiently looking out, and i felt very reassured. Enough gas? check! You ok? check! Let’s go?! check!