"CCred68046" wrote in message
...
Does anyone know how those big ocean liners are protected from lightning
strikes?

Most are protected through strike termination devices located high enough to
provide a "zone of protection" to the ship and its occupants.
These strike termination devices are bonded to grounding conductors that are
connected to grounding plates in contact with the water.

These systems do nothing to prevent strikes (they may actually cause more of
them) but they do dramatically reduce the chances of serious injury or
death.