I've done lots of crazy stuff, but probably the craziest, combined with most fun, was a trip I took to a seaside resort while in the Air Force and stationed in Sicily. A bunch of us spent 4th of July weekend at this resort and we spent one day on the beach where we would have a beer, then swim out until the current caught us, swept us down the coast for awhile, then we'd break free of the current, swim in, walk back up the beach to the coolers, drink another beer, then repeat. It's a wonder we didn't all drown. One of the most fun weekends of my life. The Mediterranean sea at that beach, at that time, was crystal clear.