This article tells about "German George" a real pain toward tourists. He thinks he owns the beach, but he hunts barefoot, and was practically asking for this. It's not just the water that is full of bacteria right now. My friends and I all wear wetsuit booties, in or out of the water.
http://honoluluadvertiser.com/apps/pbcs.dll/article?AID=/20060416/NEWS01/604160352/1190/NEWS
http://honoluluadvertiser.com/apps/pbcs.dll/article?AID=/20060416/NEWS01/604160352/1190/NEWS