Ha, yes that could be the answer. I'm sure you posted tongue in cheek but beach launching a smallish rib (under 5m) is something I am thinking about. Wonder how big a rib or weight a quad could handle on a beach?
I bought an X trail recently which helps a lot with dragging back up the beach but I still daren't take it down to the waterline at low water.
I'm looking at replacing the trailer tyres and jockey wheel with balloon type wheels and unhitching the trailer before pushing but still not totally convinced this will work. Work in progress on this one for me...