Every so often I like to get off the beaten path underwater and just go exploring. I took Kelli and Barry Wonenberg with me last Sunday and we went to Lau Lau. After about an hour when they had both used up their tanks, I took them back to the rope and then I headed out for the rest of my dive. I went through the coral heads in the shallows until I got to the pipeline, then I kept going south from the pipeline until I had the white sand. This was the first mystery I ran across over there. It is obviously manmade, a bunch of rocks all piled together with various pieces of pipe and wood stuck in them to stand up. Was this a monument for some divers who had died here? Does it mark something of historical significance? Or was somebody just bored one day and decided to leave their mark? I have no clue, but I'd like to know the story behind it if anybody can enlighten me.Then these piles were the second mystery, there were several of them scattered all over the white sandy area. If I was back in Michigan and we were in a field, I would say it was a "cow patty", you know a pile of cow poop. I thought it was very strange the way it was intricately layered. I sifted through one of the piles seeing if there was something inside of it that might have been responsible for it, but there was nothing there. I even dug down a ways, but didn't find anything down there either. So what are these piles? Are they UFO excrement? After all, I've heard many theories about how UFO bases are supposed to be underwater. Just one more of the many little mysteries down there, at least it's a mystery to me. So if you can help me in my education, I'd be most appreciative.