Hi Kimmysmom. I am the biggest chicken out there, haven't even attempted to do Big Thunder, Space Mtn, etc. I HATE rollercoasters and anything scary but I LOVED Dinosaur, it is a bit bumpy but there are no sudden drops. It is my perfect kind of ride, not too fast but fast enough to give you a small thrill. I was very nervous about trying it the first time but can't wait to go on it again when we visit in Oct.