It all depends.
2 hours is good for tourist that are looking to get in other attractions during their stay
4 hour is good for intermediate or advanced riders, as some feedback is that it takes about an hour to really get acquainted with the machine and realize it’s capability.
But again it just depends on your preference! There are many factors to consider.
If riding with kids that have a short attention span we’d recommend the 2 hour
If you plan to take your time to explore the property along the way, such as, cave exploring, hanging out /taking breaks along the way to enjoy scenery, picnic, etc., then we’d recommend the 4 hour.
With all that said, we have people who camp with us and bring in their own rigs that will spend 3 days on the trails or longer.
If you are still in question then we recommend the 2 hour. We can extend if we have the availability.