Starting off with the hypothesis that I am the sole winner of the EuroMillions jackpot of Euros 38 million this coming Friday and I decide to build myself a motor yacht capable of confronting all hitherto known sea conditions... ...and I've done some research on the subject: Monster waves revealed by ESA satellite study Scientists investigate freak waves (BBC) 29.8m high rogue wave detected by the ESA satellite What would a yacht capable of surviving intact "a vertical wall of water 100ft high exerting forces approaching 100 tons per square metre" (say roughly 22,270 pounds per square ft.) actually look like?! PS. I never understood why the owner of the 55m I worked on back in the 80s declined to join the vessel on the Atlantic crossing (November) but was quite happy to be aboard for the Pacific crossing (January) from Panama to the Marquesas...?! PPS. Do you wonder sometimes whether the likes of people who own Octopus etc. realise that if ever confronted by one of those 10 storey high rogue waves, the yacht would very probably succomb immediately and never ever be seen again (if it's the ugly Rising Sun, one might say "Hurray")...?!