After a last minute dash (powered by several frantic prayers from Little T), we managed to just get to the ferry in time to travel to IOM to see the cousins.
The crossing itself was pretty good, not much wind, gentle sea, calm motion of the boat. All of this meant, of course, that Mrs K/C/KC spent the whole time lying down looking green.
Little T watched DVD's on the laptop and Little O spent a fair majority of the trip looking out of a window and shouting at something (although distant oil rigs were the only things in view)