This section of the page features an image gallery, so if you're using a screen reader you may wish to jump to the main content.

Notice: Please note: Tickets for the Newton House Hallowe'en sleepover on 31 October are now sold out.

12th-century Welsh castle, historic house and 18th-century landscape park, enclosing a medieval deer park

A magical land of power and influence for more than 2,000 years, Dinefwr Park and Castle is an iconic place in the history of Wales. Two forts are evidence of a dominant Roman presence. The powerful Lord Rhys held court at Dinefwr and influenced decisions in Wales.

The visionaries, George and Cecil Rice designed the superb 18th-century landscape that you see today.

The 'hands-on' Newton House gives visitors an atmospheric circa 1912 experience. Exhibitions on the first floor tell Dinefwr's story and inspire visitors to explore the castle and park.

What's on?

Great activities throughout the autumn half term © Paul Harris

Great activities throughout the autumn half term

We've a full list of events running throughout the year at Dinefwr and this autumn has something for everyone.

Join us for some half term pumpkin carving or take in the dazzling display of colour in the ancient woodland. Don't forget to listen out for the sounds of clashing antlers, we're in the middle of the fallow deer rut.

Why not take a tour of Newton House, one of the National Trust' most haunted houses? Many spooky stories about spirits and scandal surround this old house, so come along and experience it for yourself.

Brand new art gallery

Art at Dinefwr © National Trust

Art at Dinefwr

We've opened a new area of Newton House that was previously closed to visitors and thought it was the perfect place for an art gallery.  We've a different exhibition on every month from some of the best artists in the country. Check out our events page for our listings.

Hidden house tours

Coats and boots ready to go in the brushing room © John Hammond

Coats and boots ready to go in the brushing room

If you're visiting Newton House, a guided hidden house tour of our 17th-century mansion is a must. You can go behind the scenes to places not usually available to public view. Hear all the upstairs-downstairs gossip and enjoy some breathtaking views from the roof.

Go to the Visitor Centre on arrival or call on 01558 824512 to book your place.

Wonderful wedding venue

Wedding party in the fountain garden © cashiona

Wedding party in the fountain garden

Get married in a land steeped in Welsh history and tradition. Newton House is nestled within an 800-acre countryside estate and can cater for ceremonies and civil services of up to 90 guests. The backdrop of Dinefwr Castle or the medieval deer park make fantastic photographs. We could even arrange for the ancient breed of White Park Cattle to make an appearance behind the happy couple on request.

Stay with us

Penparc cottage on the Dinefwr estate © National Trust

Penparc cottage on the Dinefwr estate

Carmarthenshire is known as the garden of Wales, so there's no surprise it's a popular holiday destination for those wanting to take a relaxing break and enjoy some of the most spectacular coast and countryside in the UK.

Where next?

Underground tour at Dolaucothi © Keith Morris

Underground tour at Dolaucothi

There are lots of special places to visit in Carmarthenshire. Just down the road from Dinefwr, near the village of Pumsaint, is one of our most unique sites Dolaucothi Gold Mines - the only known Roman gold mine in the UK.

With so many places to visit - not just in Carmarthenshire, but the surrounding counties too - many of our visitors choose to take out a membership.

Top tips


Visiting Dinefwr? Keep up-to-date with all the latest news and share your experiences with us and others on our Facebook Page.

Or follow us @NTCARMS

We love to experience Dinefwr from your perspective

Trip Advisor winners

We're proud to have won the award of excellence for having consistently high reviews on Trip Advisor. Please take a moment to leave your feedback. Thank you.

Is it hot or not?