"...That definitely sounds like something is down there that we wouldn't expect to be there normally."

Whatever that is. "...It might not be all that safe to go down there." Which doesn't mean that they shouldn't go. Just: "We should go prepared." Whatever exactly that means - it probably depends by person. She thinks she should at least take some first aid things along. Because knowing this troupe, one of the kids will break their ankle. Or probably do something more creative than that. Learn how to fly and crack their skull because they can't control it. Who knows.