Our tour guide was great but we finished the tour an hour early. I was surprised that we were done so fast and although we saw the sights, I don't believe it should be called a 4 hour tour and then end in 3. It should be called a 3 hour tour as the only thing that would have made this longer would be if the guide paused for a long time at each site. The hidden lake was lame, the great chamber was cool and the slip canyon was nice but we saw others that were much prettier on our own.