Morris read the sign and then told the rest of the polar bear club that they would have to be careful entering the water. He even had a designated non swimmer posted to watch and give everyone a warning if he saw changes in the water level. Everyone jumped in at the same time and simultaneously felt the tingly electrical current course through their bodies at an increasingly higher rate. The water level began to increase as bladders emptied. Turns out the sign was exactly correct. Morris put a footnote in the club's field notes for future reference.