I am afraid that I am not flying a Cirrus, but a Microlight Eurostar type. I would definitely wear a survival suit and PLB and handheld Radio!
As for landing on a ship, I don't think I would have the skill yet but watch this!
I am going to see if I can go on a course as has been suggested I would probably never need it but I would feel very foolish if I didn't do one and the donkey was to stop half way across.
I know that people can survive this, such as this man a few years ago