On the surface it looks fearsome, but 60ft down it is a steady five-knot current that carries divers, sharks, rays, turtles and anything else caught in its power on an excursion past the reef wall.
Other currents may carry divers up and down.
They may also carry divers or surface water rescue workers.
Camille Porch was carrying divers and pumping equipment.
A few American submarines on intelligence missions have been known to carry deep-sea divers and small submersibles, but these officials have said the American boats on this occasion were not equipped to help.
Shortly afterward, a helicopter arrived carrying divers with the Police Department's Air-Sea Rescue unit.
It carried with it highly skilled divers and an un- Seawitch pleasant assortment of mines, limpet mines and amatol beehives, all of which could be activated by remote radioactive control.
Well, we don't carry divers.
These vessels often also carry scientific divers and unmanned underwater vehicles.
In addition, they performed search-and-rescue duties for which they had facilities to carry divers (including a decompression chamber) and equipment to recover vessels and aircraft.
