Been to the human aquarium yet? Actually, this is a shot from last weekend's immodestly billed Underwater Hockey Championship of the Universe at Gaines Park Pool in West Palm Beach, Fla. Underwater hockey is a little-known—but, according to afishionados, rapidly growing—sport in which competitors use a 14-inch wooden stick better suited to stirring paint to try to knock a three-pound lead puck into a trough at the back of an eight-foot-wide goal. (Of course, there's no icing.) The players, six to a side, rocket to the surface now and again to take a snorkelful of air, but the fittest will be underwater for about 20 minutes of a 30-minute game. Underwater hockey is considered an extreme sport for the combatants, and it certainly makes for more than just another day at the pool for the spectators, who, we presume, are encouraged to do the Wave.