My sisters and I recently went to the Grand Canyon for a day and weren’t real sure how to best see it. We opted for this self-guided tour which you download through the action tour guide app. They explained everything very well and although we did have a question when we got to the park, it was my mistake in following directions, not theirs, and the gentleman who answered my call helped me immediately and so kindly. And we were on our way. It was very easy to use and VERY inexpensive. Ours was $30. And once you load it, you have it forever. I can reuse it as often as I want to. We could go at our own pace, as well, which we really liked. Highly recommend.