To get to the swimming pool at our country club, you have to walk through the changing room and then this mini pool area, for lack of a better term. I believe the thinking goes that by walking through this you are decontaminating your shoes before you hit the pool deck. Because an outdoor pool deck filled with hundreds of people and kids is germ-free...
Hopefully the humor in placing a "Caution - Wet Floor" sign inside this pool is as obvious to you as it was to me.
Oh and the decontamination logic doesn't stop there! The doorway-like space between the changing room and the decontamination pool area -- a doorway you HAVE TO walk through, has water coming down from the ceiling - as if you're in the shower. Again, I think this piss-poor attempt at getting people "clean" before they get to the pool deck is laughable Why? Because everyone hugs the wall when they walk through so that the shower water raining down from the ceiling doesn't get you wet. You can't see the shower water in this pic - it's coming out of the white tube on the ceiling over the doorway. The helper in the black shirt is likely getting wet in this picture.
Hong Kong logic at its best.