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Nature Reserve:Dinefwr National Nature Reserve

Nature Reserve

SA19 6RT



This beautiful area of parkland has many very old trees, some of which are estimated to be over 700 years old and which support numerous interesting lichens and insects.

Already a SSSI, Dinefwr was designated as a National Nature Reserve in 2007, and it is the only area of parkland to receive such a designation in Wales.

Dinefwr has something to offer its visitors all year round; from the early spring flowers right through until the fungi appear in autumn there is always something interesting to see and enjoy.

In the various areas of woodland with in the Park there are more than 300 trees that are over 400 years old. Within the parkland all three of the native British woodpeckers live. The Tywi Valley where the park is situated is a well-known area for seeing numerous bird species, especially summer visitors such as Redstarts (Phoenicurus phoenicurus) and Pied Flycatchers (Ficedula hypoleuca).

Children welcomeMobility Accessibility FacilitiesDogs accepted

Opening details

Parkland opening hours 11:00 - 16:00 or 17;00 all year.


SA19 6RT


Plan route to Dinefwr National Nature Reserve using Google mapsPlan route using Google maps

Map reference: SN 622225  Lat: 51.88401 Long: -4.00336

From the M4 Motorway Junction 49 (Pont Abraham Services) follow the A483 north to Llandeilo.

On the A40 east from Carmarthen, turn right where signed to Llandeilo, proceed up the hilii and Dinefwr can be found on the right hand-side of the road just before you enter the town.

Parking: with charge

Accessible by Public Transport: 1 mile from Llandeilo station


  • Children welcomeChildren welcome
  • Mobility Accessibility FacilitiesMobility Accessibility Facilities
  • Dogs acceptedDogs accepted