no i don't have a pre-made ditch kit. I prefer to make specialised kits for specialised situation. Besides i'm not very often on a ship.

I don't think a big ditch kit is handy in a cruise ship, to many stairs to take and too many people around you. So probably just a small waterproof bag, with a micro fiber towel, some fleece based clothing, basic waterproofs, strobe, signal mirror, some water and some food. Whistle is standaard on you PFD, if not also part of mine EDC. Flashlight is also EDC.