This 3-mile circular walk takes in some of the great wildlife-spotting places in Dinefwr’s historic parkland, famed for its abundance of wildlife and stunning valley views, as well as a medieval castle and 17th-century mansion. Some of the 'veteran' trees are thought to be more than 700 years old and support such a high diversity of lichens and invertebrates that the park has been declared a Site of Special Scientific Interest and a National Nature Reserve.