At the Southampton Boat Show there was a 120' Sunseeker M/Y with a large garage hatch at the stern. The brand new yacht had launched it's tenders, so was light at the stern, and was tied along side. Water was washing in over the swim platform and into the garage at what I thought was an alarming rate. Around 4 or 5 inches of water was sloshing around, this is on a calm day while at the dock. St. Tropez can get quite rough in the afternoon, on a busy weekend at 'going home' time there is a lot of wash from careless skippers. I'm suprised more of these bath-tub dayboats don't get swamped.