yeah, mocean, you are right. there was huge rainfall when we were leaving (we went late feb/early march) and after we left, serious serious flooding where it spilled out the sewage.
This one guy that lives in oahu was riding his bike and fell, and scraped/cut his leg and he had fallen in to some water....anyways, within 3 hours they had to amputate his leg, and less than a day (or less, i forget) he died. fecal matter in the water.
be safe! hotels have great pools!