So Daryn and myself are going out caving one time when this small oreintal guy comes running towards us. We were on a dirt road so we weren't shocked to see anyone. The guy said that he was practicing tai chi and had been hearing this strange noise for a long time. We investigated with him but it turned out to be a blower pipe to a water pipe. It wasn't a big deal to us but the guy was convinced something was up there. It was humorous to us, but probably isn't that funny now.