My husband and I did this tour with my visiting parents. It was awesome! We booked the private tour, which is a little bit more but totally worth it. Johannes, our guide, was wonderful! None of us had even ridden a Segway and he gave us a great training and made sure we were all comfortable. With the private tour, you get to explore the west end of the park, which is a lot more rustic than the east end. Johannes showed us lots of cool spots and shared some history of the park. We did paved and dirt trails through the redwoods. We saw horses and bison and stopped at a fly fishing pond in the middle of the park. The dirt trails are very fun on the Segway and going up and down hills was a blast. The midpoint of the tour brings you to the lovely Ocean Beach. It was the highlight of my parent's visit and even though my husband and I live in the Bay area, we have never experienced something like this. Book it! Do the private tour if you have 3 or more people and if you can get Johannes as your guide you are guaranteed a great experience. All the people working there were cool and chill. A wonderful San Francisco experience!