We were visiting the area and were tired of shopping and dining so we decided to do something different and with a bit of exercise. While the riding is not particularly taxing, you do feel like you have had a workout after the two hour excursion. Brandon and Kevin were great guides, there were only two of us and so it felt like we had a personalized tour that was geared toward our abilities, our interests and our sense of fun. The bikes are like nothing I had ever ridden before, they are not scooters, they are not ATV which make a lot of noise, they are bikes that you peddle and can supplement (nature friendly) with an electric motor. The sights along our tour were great, very remote and we did not see any other people while in the desert which made the experience even more realistic. Because they are bikes, we tread lightly on the fragile desert floor, but it allowed us to see what it is like and learned so much about the flora and the fauna of the area. We were even treated to a rattlesnake demonstration (safely of course). This is really a great thing to do and I would do it again!