I do a lot of traveling. And I taken a lot of Tours. This by far was the most interesting and the most fun. First of all its extremely hot in Austin so taking a tour during the day is out. Doing this tour at dusk was phenomenal you get to see all the lights you get to see the bats and get to ride with some excellent music and a phenomenal tour guide. He was extremely knowledgeable I even asked off the wall questions and he knew the answers. If you can only do one tour in Austin this is the one you should do.