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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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Oswestry

Address

Shropshire, SY11 2TE

Telephone
01654 702653

info@mwtcymru.co.uk

Oswestry is the third largest town in Shropshire with a population of 17,000; it is five miles from the border with Wales and has a mixed Welsh and English heritage.
Sustrans Route 82:Machynlleth -Fishguard

Address

Sustrans Route 82:Machynlleth - Fishguard, Machynlleth Town Centre, SY20 8AB

Telephone
01179268893

Machynlleth Town Centre

This section of route 82 heads South towards Aberystwyth but the route is still under construction. Beyond Aberystwyth the route heads along the old railway line towards Tregaron and Lampeter. The route finishes in Fishguard.
Walking Newtown | Waterways and Town

Address

Y Drenewydd | Newtown, Powys, SY16 2BB

Telephone
01686 625544

townclerk@newtown.org.uk

Y Drenewydd | Newtown

This 2.5 circular mile walk starts in the centre of Newtown and largely circles around the western boundaries of Newtown. It will take you along the River Severn and has some road and off-road walking.
Harlech Castle (Cadw)

Address

Castle Square, Harlech, Gwynedd, LL46 2YH

Telephone
03000 252239

harlechcastle@gov.wales

Harlech

Explore the magnificent castle of Edward I at Harlech - which is inscribed on the World Heritage List. One of the most formidable and dominant fortresses in Wales. Panoramic views of Snowdonia and the sea. On site exhibition.
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
Rev.W. Awdry's Engines Weekend | Talyllyn Railway

Address

Rheilffordd Talyllyn Railway, Gorsaf Wharf Station, Tywyn, Gwynedd, LL36 9EY

Telephone
01654 710472

enquires@talyllyn.co.uk

Tywyn

Celebrating the life and legacy of the Reverend Wilbert Awdry, creator of Thomas the Tank Engine & Talyllyn Railway Volunteer!
Coed Rheidol Nature Reserve (NRW)

Address

Coed Rheidol Nature Reserve (NRW), Devil's Bridge, Ceredigion, SY23 3JW

Telephone
0300 065 3000

enquiries@naturalresourceswales.gov.uk

Devil's Bridge

Coed Rheidol is situated about 12 miles east of Aberystwyth. It occupies parts of both banks of the Afon Rheidol, upstream, and the south bank downstream of Devil's Bridge.
Rhaeadr Gwy | Rhayader

Address

Rhayader, Powys, LD6 5BU

Rhayader

A busy, historic market town, Rhayader is named after 'Rhayadr Gwy', a Welsh name for a local waterfall on the Wye. The town is situated in the very heart of Mid Wales in the beautiful Upper Wye Valley sheltered by the Cambrian Mountains.
Tal-y-Bont Walk

Address

Talybont, Ceredigion, Ceredigion, SY24 5HE

Telephone
0300 065 3000

Ceredigion

Start: Tal-y-bont village green
Grid Reference: SN 654 891
Distance: 3.1 km – 1.9 miles
Grade: Easy/moderate
Terrain: Tarmac road and grassy tracks. Can be muddy
Maps: OS Explorer – 213
Bala & Penllyn | Cycle Trails

Address

Bala & Penllyn, Bala, Gwynedd, LL23 7AD

Bala

Cycle routes through southern Snowdonia and the exciting scenery around Bala,
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.
Blaenau Ffestiniog Railway Station

Address

Church St, Blaenau Ffestiniog, Gwynedd, LL41 3HE

Telephone
0800 464 0000

Blaenau Ffestiniog

Blaenau Ffestiniog railway station is the terminus of the Conwy Valley Line from Llandudno Junction; most trains run from/to Llandudno. Trains connect with the North Wales Coast Line. It is also the terminus of the Ffestiniog Railway.
Warren Wood | Water-Break-its-Neck Waterfalls

Address

Near New Radnor, New Radnor, Powys, LD8 2TN

Telephone
0300 065 3000

enquiries@naturalresourceswales.co.uk

New Radnor

Warren Wood has been popular with tourists for over 200 years because of the waterfall known as Water-Break-its-Neck. The waymarked trail along a gorge and explore the woodland with some of the largest trees in Radnorshire.
EnduroGP of Wales 2026

Address

Cwmythig Hill, Rhayader, Powys, LD6 5NS

info@endurogp.wales

Rhayader

EnduroGP of Wales 2026 – The Grand Finale
6th – 9th August 2026
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.
Pontarfynach | Devil's Bridge

Address

Devil's Bridge, Ceredigion, SY23 3JW

Devil's Bridge

The village of Devil's Bridge is situated at the head of the Rheidol Valley in the heart of the Cambrian Mountains. Famous for its bridges and waterfall, Devil's Bridge and can be reached via the Vale of Rheidol Steam Railway.
Walking Newtown | Neuadd Hendidley Farm

Address

Y Drenewydd | Newtown, Newtown, Powys, SY16 2BB

Telephone
01686 625544

townclerk@newtown.org.uk

Newtown

The starting point for this walk is the Newtown Town Clock in the town centre and unfolds through Newtown's historical tapestry. It is approximately 3.5 miles and should take around 3.5 hours
Wales Coast Path | Ceredigion

Address

Wales Coast Path | Ceredigion Coast, Cardigan - Borth, Ceredigion, SY24 5HX

Telephone
0300 065 3000

wcp@cyfoethnaturiolcymru.gov.uk

Cardigan - Borth

The Ceredigion Coast section of the Wales Coast Path providers the walker with glimpses of dolphins and porpoise, seals and a host of marine birds throughout the year around the majestic sweep of Cardigan Bay .
Llanfyllin

Address

Llanfyllin, Powys, SY22 5AQ

Telephone
01938 552043

ticwelshpool@btconnect.com

Llanfyllin

Llanfyllin is thriving market town in north Powys on the upper reaches of the Cain valley. It is an ideal centre to explore the area including nearby Lake Vyrnwy and Welshpool.
Lake Vyrnwy 10k Trail

Address

Lake Vyrnwy, Llanfyllin, Powys

Telephone
07595 031 333

hello@adrenalinesportingevents.co.uk

Llanfyllin

The Lake Vyrnwy 10k offers a challenging route for all trail runners. It takes in some breath-taking scenery overlooking the Lake that is very rarely seen.