My only one suggestion for sailors is a topsider or the like for onboard. I have been sailing here yearly since 1981 and ofter break this rule but remember when working fast on the boat there are slippery areas and certainly with an unfamiliar boat areas that you don't know well and a broken toe during your trip is not fun. I'm looking at my bare feet onboard right now and laughing at my post but I have seen it happen way to often. Wear your topsiders on the trip and bring only flip flops.