I work as a cave guide and lead tours where we take people actual spelunking. Well one day, we take a group down in the cave and everybody is having a good time. We stop to take a break at a part of the cave where you can hear the underground stream that flows through the cave. We have everyone turn out there head lights where it's complete darkness, it's very relaxing. Then all of a sudden we start hearing what sounds like people talking out in front of us and sounds of what seems to be rocks being thrown in the water. The thing is there is a 100 foot drop in front of us and the stream is at the bottom of that 100 ft drop. I've never heard anything like that before in the cave and neither had the other guide that was with me. It was kinda creepy, but we decide it's just the sound of water sounding like voices, because sometimes if you listen long enough, the water sounds like muffled voices. However, I have never heard that noises coming from that particular spot it's usually off towards the right of where
stop. Which is why it was creepy, this was directly in front of us.
We continue and complete the tour and after cleaning up some of the gear decide to go record the noises with our phones. As we are going back into the cave, a different tour is coming out. This tour takes people on concrete trails through a different part of the cave, but the walk by where the spelunking tour begins. The guide off this tour looks at the both of us and a little surprised and asks "How did y'all get out so fast?" We are just like dude we have been out for an hour. He says that his whole tour could hear people talking back in the cave where the spelunking tour goes. Now everybody is kinda creeped out and we have to call the law enforcement officer and go look for people that snuck into the cave.
We never find anybody or evidence of someone sneaking in.
