aren't Volvo "pods" very vulnerable to grounding or

whitepointer23,

How do hedgehogs make love? Very, very carefully.

So it is with boats. If you know there is a "hazardous to boats" area, do you go there? No, is the correct answer. Curiously, insurance companies take a dim view of boat owners risking their vessels and they charge like stampeding bulls in consequence. It's a given that $hit happens, but the shipping container floating just under the surface will sink a speeding vessel as well as tearing off the pod drives, but according to Volvo, the destroyed pod drive site will not leak. Small comfort.

The old photograph is of Ohura, one of the R. Whanganui riverboats on North Island, NZ that capsized. Although the props are hidden in tunnels, the rudder still has to plunge the depths, so to speak. The feeling is akin to swimming naked in the ocean & imagining fishy teeth snapping around one's dangling, landing tackle. It's back to the hedgehogs really; swimming very, very carefully.