RUNNING OF THE TUBS9 a.m., Bathhouse Row, Hot Springs. Free.
The rules give you a pretty good idea of what to expect. They get fairly technical, but here's the gist: A five-person team, four pushing, one bathing, must guide a bathtub, affixed with wheels (unless you apply for a special “moron” waiver), down the middle of Central Avenue's Bathhouse Row. The four pushers must wear hats of some variety and suspenders and between the four, one must carry a large bar of soap, one must carry a “nice” bath mat, one must wear a loofah mitt and another must carry a bath towel. All items must cross the finish line. Also, the tub must start the race full and finish with at least 10 gallons of water. “We have all sorts of arbitrary rules for this event,” Hot Springs Convention and Visitors Bureau CEO Steve Arrison has acknowledged. There's an anything goes governing mentality — you can use water balloons, for example — but that also means that rules are subject to sudden changes, “maybe even after the race starts,” according to Arrison.