I remember some years ago hearing of a boat off the coast of San Diego that was sunk by a Rogue Wave. I don't think I knew what that meant, and I had visions of a giant tidal wave hitting the ship much like the movie version in the original Poseidon Adventure.
But rogue waves are apparently more common than I thought. And even if there weren't rogue waves, there is apparently stormy seas that can cause a ship to lose an engine.
Here is video of a cruise ship heading back to Argentina from a failed journey to Antarctica. Apparently the seas were so rough that they not only lost an engine, but also communications for a time.
Everyone on board is reported to be safe, but just looking at that makes me sea sick.
I was thinking about a cruise sometime next year...but with rogue waves, storms and losing engines (a recent Carnival Cruise ship lost an engine while on the coast of Mexico just last month) maybe I'll stick staying at home.