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Dinefwr is an iconic place in the history of Wales. The two forts are evidence of a dominant Roman presence, through to the Medieval times when the Princes of Deheubarth held Dinefwr Castle as a seat of power and influence. In the 19th century, George and Cecil Rice created the designed landscape the park displays today, clearly inspired by 'Capability' Brown who visited in 1773. The parkland hosts many walks through Bog Wood, the Medieval Deer Park and alongside the majestic White Park Cattle. There are plenty of activities, tours and events held throughout the year. Newton House is not a traditionally “dressed” house, more a hands-on atmospheric experience telling the stories of the families that shaped this 800-acre estate.



  • Suitable for children of all ages
  • Parking onsite
  • Parking nearby
  • Cafe
  • Facilities: Lift to basement & 1st floor, hearing loop in Visitor Centre
  • Accessible toilets
Opening times
  • Opening Times: Parkland, Newton House, gift shop & Billiard tearoom open Apr-Oct, 10-6; Nov-Mar, 10-4. Castle open 10-4 (last entry 1hr before close)

About the area

Discover Carmarthenshire

Carmarthenshire is the largest of the historic counties of Wales, and known to have been inhabited since prehistoric times. Carmarthen, its county town, with its Roman fort, claims to be the oldest town in Wales.

Carmarthenshire was a heavily disputed territory between the Welsh and the Normans in the 12th and 13th centuries, and many of the castles and forts dotting its landscapes date from this period. They include ruins at Carreg Cennen, Dinefwr, Dryslwyn, Laugharne, Llansteffan and Newcastle Emlyn, as well as the slightly better-preserved Kidwelly Castle. Carmarthen Castle, meanwhile, saw further fighting during both the Wars of the Roses and the Civil War, when it was captured twice by the Parliamentary forces, and ordered to be dismantled by Oliver Cromwell.

In these more peaceful times, the economy of the county is mainly agricultural (the 19th-century Rebecca Riots, in which local farmers and agricultural workers protested against higher tolls and taxes, started in Carmarthenshire), and its fertile farmland is known as ‘The Garden of Wales’. A more literal garden, the National Botanic Garden of Wales, opened in 2000.

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