Be cautious they can push your to an another time zone without notifying you. We wanted to go on Wednesday at 8am, we showed up payed the 20$ for parking, there was a tour guide but told us we are not on the list, but don't worry an another will come, never came. I immediately requested a refund, after a couple of hours a letter came back that they are sorry bla bla, but won't return our money. I had to call them and tourned out they pushed our tour to 10am and they sent us a text( never arrived) they won't refund our money but we can reschedule the trip... Fortuenetly we could move things around but it was dumb luck.
The tour itself was boring, you are going to go in a single line if someone in your group doesn't push the throutle you'll probably fall asleep, no speed no fun terrain.
Only reason I give 2 star because the tour guide was a fun guy.