I never want to not do the cave tour after walking up the Timpanogos Cave trail. I need the reward after the exertion. Daniel and I came prepared with lunch and hoodies. We eat after the hike, but before the cave tour. No food allowed in the cave because gross stuff grows in there. There are doors all throughout the cave tour to act a airlocks. A breeze would flow through the three connected caves if the doors were not there. Air would kill the cave formations'growth. Those small drops of water that build the helitites, cave bacon and carmel falls would dry up.