JC and I have recently found a cave in a relatively well traveled area. It looks like just a simple undercut that is easily discounted. At the time I was tired and waited while JC pushed it. Needless to say we were both pretty excited when he returned with pictures.
Admittedly the cave was blowing cold air quite strongly so that should have been a hint. We had intended to re-visit this weekend as there is a craw tube deeper in from which the cold air comes and for which neither of us had energy, but Maggie wants to go to Toronto so the exploration will have to wait (more details and pictures to come tonight).