The Dinosaur Park is situated on Sir Robert Norramby's estate at Ulfstead. The park was constructed with the help of Harvey, Samson and Millie. As well as many animatronic dinosaurs, there is a model of a volcano in the park. The model did not originally let out real smoke, but after Millie used it to play a trick on Samson and Harvey, it was modified so that it would let out smoke, simulating lava. The park has dual-gauged rails running through it from the Estate Railway.
It was introduced in the eighteenth series.
- Series 18 - Marion and the Dinosaurs (mentioned) and Millie and the Volcano
- Series 20 - Over the Hill
- Series 21 - Stuck in Gear and Runaway Engine
- Series 22 - Rosie is Red (stock footage)
- Series 23 - Heart of Gold