From a guy who has been flipped...As mentioned, try to pick small days and places that aren't exposed. Pack anything that shouldn't get wet inside plastic zip bags (cell phone, car security clicker). Remember, you are super slow moving in a tube and most likely won't be able to outrun a wave. If you are going to be hit going into the surf, kick super hard and lean into the wave with your back to it. Try not to get into that situation, however. :o

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