Our son wanted to try this adventure while we were here celebrating Thanksgiving. Read many of the reviews prior to booking. I made our reservation over the phone. Katie was very helpful with booking. She explained everything about the tour. She was equally helpful when we met her in person. Don’t be put off by meeting at a gas station. It all works out. The semi private tour we had with guide Moe was great!!! He was personable and knowledgeable. The three of us were with four others. Just the right amount. This is one of the great sites! Totally enjoyed this!