Mountains of dead shells piled up by constantly twisting and moving mooring chain, chain has older chain and a reef hook tangled within, barren silty sand, poor visibility, CUBA Mooring 5, underwater, 4K UltraHD, UP44807

Swimover shot of mountains of dead shells piled up by constantly twisting and moving mooring chain, chain has older chain and a reef hook tangled within, barren silty sand, poor visibility, CUBA Mooring 5; underwater at Trevally Street Anchorage, Australia; stock footage video #44807.