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Castles in Mid Wales | Historic Fortresses and Ruins

Castles Across Mid Wales

Mid Wales has castles from every period of Welsh history. Some are UNESCO World Heritage Sites with walls intact. Others are atmospheric ruins on hilltops where sheep graze among the fallen stones. A few have been lived in continuously for centuries and are open to visitors with gardens, collections and tea rooms.

The Major Castles

Harlech Castle is the most dramatic, perched on a rocky outcrop above the coast with views across Tremadog Bay to the Llyn Peninsula. It is a UNESCO World Heritage Site and one of Edward I's iron ring of fortresses. Powis Castle near Welshpool is altogether different, a medieval castle that became a grand country house, famous for its terraced gardens, which are among the finest in Wales.

Aberystwyth Castle stands in ruins on the headland, but the setting above the seafront is worth a visit. Montgomery Castle is a hilltop ruin with views across the Severn Valley into England.

Quieter Castles Worth Finding

Castell y Bere, near Dolgellau, is a native Welsh castle built by Llywelyn ab Iorwerth in the 1220s. It sits in a remote valley beneath Cadair Idris. Tretower Court near Crickhowell combines a medieval house with a castle tower. Cardigan Castle has been restored and hosts events, markets and exhibitions.

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Aberystwyth

Address

Ceredigion, SY23 2AG

Telephone
01970 612125

aberystwythtic@ceredigion.gov.uk

Welcome to Aberystwyth - a beautiful and lively seaside town on the Mid Wales coast. Enjoy stunning natural beauty, cultural attractions, unique shopping and dining, and a range of accommodation options. Easily accessible by railway, bus, or car,…
Royal Welsh Show

Address

Royal Welsh Showground, Builth Wells, Powys, LD2 3SY

Telephone
01982 553683

requests@rwas.co.uk

Royal Welsh Showground, Builth Wells

Dates

From:

19 July 2027to22 July 2027

The Royal Welsh Show is one of the most respected events of its kind in Europe. It brings together the farming industry and rural communities to celebrate the very best of British agriculture, with a distinctive Welsh character that sets it apart.
Abergavenny Museum and Castle

Address

Abergavenny Museum and Castle, Castle Street, Abergavenny, Monmouthshire, NP7 5EE

Telephone
01873 845282

abergavennymuseum@monmouthshire.gov.uk

Abergavenny

The Museum was founded on 2nd July 1959. The idea for a Museum was around from as early as 1903 when it was discussed and minuted by the Abergavenny Free Library Committee.
Wonderwool Wales 2027

Address

Royal Welsh Showground, Llanelwedd, Builth Wells, Powys, LD2 3SY

Telephone
01938 820495

chrissie@wonderwoolwales.co.uk

Builth Wells

Dates

From:

24 Apr 2027to25 Apr 2027

The award-winning Wonderwool Wales returns 26 - 27 April and celebrates all that’s great about Welsh wool and natural fibres.
Llyn Brenig | Walking Trails

Address

Llyn Brenig Lake and Visitor Centre, Llyn Brenig Visitor Centre, Cerrigydrudion, Corwen, Denbighshire, LL21 9TT

Telephone
01490 420463

siwan.hughes@dwrcymru.com

Cerrigydrudion, Corwen

Number of designated walks ranging from ten mile 'round the lake walk to more leisurely themed trails including an archaeological trail. Guides available from visitor centre.
Wales Coast Path

Address

From South to North Wales via the coast, Wales

Telephone
0300 065 3000

wcp@cyfoethnaturiolcymru.gov.uk

Wales is the first country in the world to have a formal trail the whole way around its coast. The Wales Coast Path (which is 870 miles long) joins up with Offa’s Dyke Path to provide a 1,030 mile trail around the Welsh border.
Aberaeron

Address

Ceredigion, SA46 0BT

Telephone
01545 570602

aberaerontic@ceredigion.gov.uk

Aberaeron is one of Wales's most stylish coastal towns. It is on the Ceredigion coast and the Wales Coast Path is accessible from the town. Sited at the mouth of the river Aeron, the harbour operated as a port in the 19th century and steam ships…
Dyfi Discovery Walk | Derwenlas Walk

Address

Derwenlas, Machynlleth, Powys, SY20 8BL

Telephone
0300 065 3000

Machynlleth

Start: Lay-by Derwenlas
Grid Reference: SN721 991
Distance: 6.2 km - 3.8 miles
Grade: Moderate
Terrain: Firm tracks, open fields, some boggy areas
Maps: OS Explorer OL23
RSPB Gwenffrwd-Dinas Nature Reserve

Address

Ystradffin, Llandovery, Carmarthenshire, SA20 0PG

Telephone
02920 353000

gwenffrwd.dinas@rspb.org.uk

Llandovery

This delightful reserve is set in the heart of Mid Wales near Ystradffin, Rhandirmwyn. Dinas is a pleasant circular walk, part of the circuit is steep with difficult terrain. Strong footwear is advised.
Cymer Abbey (Cadw)

Address

Vaynor Farm, Llanelltyd, Dolgellau, Gwynedd, LL40 2HE

Telephone
0300 025 6000

cadw@gov.wales

Dolgellau

Dates

From:

1 Apr 2026to31 Oct 2026

From:

1 Nov 2026to31 Mar 2027

The serene ruins of Cymer Abbey stand in a lovely setting beside the River Mawddach. Particularly impressive are its great windows, arches and an unusual tower. Saif olion heddychlon Abaty Cymer mewn lleoliad hyfryd ger Afon Mawddach.
Dyfnant Forest | Pen y Fford (NRW)

Address

Dyfnant & Vyrnwy Forests (NRW), Penyfford Car Park, Lake Vyrnwy, Powys, SY21 0QH

Telephone
0300 065 3000

enquiries@naturalresourceswales.gov.uk

Lake Vyrnwy

Dyfnant Forest is home to the Dyfnant Rainbow Trails, designed with horses in mind but also welcoming walkers. There are nearly 100 miles of tracks and trails with five horse riding trails and three carriage driving trails in Dyfnant Forest starting…
Circular Walk 8 - Llanllwchaiarn Lollipop Walk

Address

Y Drenewydd | Newtown, Powys, SY16 2BB

Telephone
01686 625544

walkingnewtown@hotmail.com

Powys

The Llanllwchaiarn Lollipop Walk starts and finishes at the Town Clock at the intersection of Broad, High and Severn
Streets. The walk is 4.3 miles and should take around 2 hours
Illuminate: Biofluorescence in Nature at RSPB Ynys-hir

Address

RSPB Ynys-hir, Eglwys-fach, Machynlleth, Ceredigion, SY20 8TA

Telephone
01654 700222

ynyshir@rspb.org.uk

Machynlleth

Dates

From:
17 Oct 2026Open 18:30 - 20:00

Discover an invisible natural world on a night time adventure and experience nature in a whole new light at RSPB Ynys-hir! As the sun sets you will head off along trails to explore an unseen natural world. We'll be exploring the woodland areas…
Mary Jones | Heritage Trail

Address

Llanfihangel Y Pennant, Near Abergynolwyn, Gwynedd, LL36 9TS

Near Abergynolwyn

The Mary Jones Walk retraces the route the 15-year-old Mary Jones walked 25 miles from Llanfihangel-y-Pennant, across the Welsh mountains, to Bala to get a Bible from Revd. Thomas Charles.
Dinas Oleu Walk

Address

Abermaw | Barmouth, Barmouth, Southern Snowdonia, LL42 1LS

Telephone
01341 440238

eryri@nationaltrust.org.uk

Barmouth

The Dinas Oleu Walk takes you from Barmouth town centre through the steep narrow winding streets of the Old Town and up to the top of the gorse-covered hill, known as Dinas Oleu (Citadel of Light).
Montgomery | Town Heritage Trail

Address

Trefaldwyn | Montgomery, Powys, SY15 6HN

Trefaldwyn | Montgomery

2.17miles (3.5km) takes about 1.5hours and is a moderate walk with a moderate grade - Download the PDF
Dyfi Discovery Walk | Pennal Walk

Address

Pennal, MACHYNLLETH, Powys, SY20 9DR

Telephone
0300 065 3000

MACHYNLLETH

Start: Pennal village
Grid Reference: SH 699 004
Distance: 13.2km – 8.3 miles
Grade: Strenuous – A mountain walk, not to be undertaken in poor visibility
Maps: OS Explorer – OL 23
North Powys | Cadair Berwyn

Address

Llanrhaeadr-ym-Mochnant, North Powys, SY10 0BZ

Telephone
01978 860828

llangollen@nwtic.com

North Powys

Cadair Berwyn mountain summit (Y Berwyn or Mynydd y Berwyn) is the highest point in the Berwyn Mountain range at 2723 ft (830 meters). It can be accessed via Pistyll Rhaeadr which is north-west of Llanrhaeadr-ym-Mochnant, on the B4580.
Coed y Brenin | Walking Trails (NRW)

Address

Coed y Brenin Visitor Centre (NRW), Ganllwyd, Dolgellau, Gwynedd, LL40 2HZ

Telephone
01341 440747

coedybrenin@naturalresourceswales.gov.uk

Dolgellau

Three walking trails are waymarked and start from Coed y Brenin Visitor Centre car park.
More walking trails start from our other car parks within Coed y Brenin Forest Park.
Montgomery Canal

Address

Welshpool, Welshpool, Powys

Telephone
01938 553271

montycanal@aol.com

Welshpool

The Montgomery Canal in the Mid Wales Marches is a haven for wildlife and tranquility with many Sites of Special Scientific Interest along the way.
Chocolate Festival of Wales

Address

Minerva Arts Centre, and various venues, Llanidloes, SY18 6BY

chocfest@foodatheart.co.uk

Llanidloes

Dates

From:
24 Oct 2026

The Chocolate Festival Wales is a celebration of Welsh chocolate, cacao culture, and artisan food producers taking place in Llanidloes on Saturday 24 October 2026.