20 Most Beautiful Rivers In Wales (with Photos)

This is my guide to 20 of the most beautiful rivers in Wales. In this article, I show you all corners of this small but stunning country and some of the best scenery in Wales.

The most famous Welsh rivers are probably the River Taff in Cardiff, and the River Wye, the birthplace of British tourism in the late 18^th century.

Most Wales rivers only have a brief journey from source to sea. But the longest river in Britain, the Severn, rises and reaches the sea in Wales too. I’ve explored all these wonderful Welsh rivers, most of them many times.

We’ll start in North East Wales, where the river Dee meets the sea, moving anti-clockwise west, south and finally east along the Welsh coast. We’ll explore what to see along the course of each of these Welsh rivers, from source to sea.

Enjoy!

Rivers in Wales – An Introduction

Image of the Solva river at Solva Pembrokeshire Wales — The river Solva approaching the end of its short journey to the sea

Image of the river Wye at Tintern South Wales — The River Wye at Tintern

Rivers in Wales Tips

Wales is a small country, and many Welsh rivers are relatively short

The word for river in Welsh is afon – pronounced a-von, with the ‘a’ sounded the same as in ‘apple’ (and not ‘Avon’ as in the English river or the cosmetics company)

Many Welsh rivers follow a similar pattern – rising on high ground, then making a brief journey seawards, shaping a gorgeous Welsh landscape on the way

The longest river in Wales is the Severn, which is also the longest river in Great Britain, but most of its journey is across the border in England.

The river Wales is probably best known for is the Wye, and the final section approaching the sea is an Area of Outstanding Natural Beauty

The longest river which flows solely in Wales is the Tywi, or Tywi, which passes through Ceredigion and Carmarthenshire in southwest Wales

20 Top Welsh Rivers

1. River Dee – Afon Dyfrdwy

Image of the River ±Dee at Llangollen Bridge North Wales — The River Dee rapids below Llangollen Bridge

Image of the scenic Dee Valley near Llangollen North Wales — The misty Dee Valley at dawn

The River Dee begins its journey at Bala Lake – Llyn Tegid – the largest lake in Wales.

It gradually descends through hilly country before passing through Corwen and onto its most scenic stretch around the lovely town of Llangollen. It runs parallel then under the Llangollen Canal, which passes overhead on the UNESCO World Heritage Site Pontcysyllte Aqueduct.

The river then crosses the border, passing into England and eventually Chester before passing through industrial Deeside and one of the most overlooked landmarks in Wales, Flint Castle, before emptying into its vast estuary and Liverpool Bay.

2. River Conwy

Image of the Conwy Valley from near Betws-y-Coed North Wales — The lush green Conwy Valley from Mynydd Garthmyn near Betws-y-Coed

Image of Fairy Glen ravine near Betws-y-Coed Wales — The river Conwy flowing through the Fairy Glen ravine

Image of the Conwy river and valley North Wales from the air — An aerial view of the gorgeous Conwy Valley

The Conwy valley is one of the most delightful of all valleys in Wales. The river only flows for 27 miles (43 km), an eventful journey from the heights of the Migneint moorland, cascading over rocks at Conwy Falls and squeezing through the narrow Fairy Glen ravine before reaching Betws-y-Coed.

After Betws, it’s a lush, verdant valley with gentle hills to the east and the steep slopes of the foothills of Snowdonia to the west.

On the east side, Bodnant Garden is one of the top North Wales attractions, especially beautiful in spring when its laburnum arch, camellias and rhododendrons are in flower.

If you’re passing through nearby Llanrwst, don’t miss the quaint riverside Tu Hwnt I’r Bont teahouse.

Image of Conwy Castle and River Wales — Conwy Castle and the river at twilight

Image of the Conwy estuary at sunset — Looking back the other way down river towards the estuary and Great Orme

The west side of the river gets a little wilder the higher you go. A steep minor road leads from Trefriw to Llyn Crafnant, one of the most beautiful lakes in Wales.

Further north, the ancient church of Caerhun stands on the site of a Roman fort, and the higher slopes hide the occasional burial chamber like Maen y Bardd, the Stone of the Poet, above Rowen village.

Eventually the river passes magnificent Conwy Castle. Conwy is one of the best towns in Wales to visit and you can read all about the many things to do in Conwy in our separate article.

The river then passes another castle on the hills of Deganwy before running out into Conwy Bay and the Irish Sea within sight of the Great Orme headland and Anglesey.

3. River Lledr

Image of the Lledr Valley Snowdonia North Wales UK — The much-overlooked Lledr Valley

Image of Dolwyddelan CAstle in the Lledr Valley Wales — Dolwyddelan Castle, the main visitor attraction in the Lledr valley

Image of the Lledr river in winter North Wales — The Afon Lledr at -12°C

The Lledr valley north of the slate town of Blaenau Ffestiniog is one of the overlooked wonders of Wales. The Afon Lledr only travels 10 miles, eventually feeding into the River Conwy just to the south of Betws-y-Coed. It’s one of the most enjoyable and scenic sections of the A470 road trip, an epic journey covering the entire length of Wales.

It’s one of the most enjoyable places to visit in Snowdonia, a dramatic valley surrounded by peaks, the most prominent of which is Moel Siabod.

The solitary surviving tower of Dolwyddelan Castle, one of the most captivating of Welsh castles, overlooks the valley and nearby village of the same name.

There are some amazing walks in the hills above Dolwyddelan village, especially on the north side of the main A470 road. Head up the path towards Moel Siabod and soak in some of the most stunning Wales scenery you could hope to find.

4. River Llugwy

Image of the Swallow Falls waterfall North Wales — Swallow Falls is a popular Snowdonia attraction

The Afon Llugwy doesn’t linger long, but in its brief journey manages to become one of the best-known rivers in North Wales.

Its source is Ffynnon Llugwy, a remote lake high in the Carneddau range in Snowdonia, before running past Capel Curig, plunging over Swallow Falls towards its rendezvous with the River Conwy.

One of the most popular things to do in Betws-y-Coed is to sit on the rocky riverbank and listen to the roar of the young river as it passes beneath the stone Pont y Pair, the Bridge of the Cauldron.

Soon afterwards it reaches the river Conwy, adding its considerable force for the push north to the sea.

5. Afon Glaslyn

Image of the Aberglasly Gorge near Beddgelert North Wales — The Glasly River flowing through the Aberglaslyn Gorge near Beddgelert

The Glaslyn river has the biggest descent of any river in Wales.

It originates in Glaslyn, a glacial lake below the summit of Snowdon, the highest mountain in Wales, hurtling precipitously to the Nantgwynant valley floor.

Image of Llyn Gwynant lake in Snowdonia Wales — The Glaslyn river passes through lovely Llyn Gwynant

Image of the Glaslyn river near its estuary at Borth-y-Gest Wales — The Glaslyn river near its estuary at Borth-y-Gest

This valley is up there with the very best of Wales, the river passing through Llyn Gwynant, one of the most beautiful lakes in Europe, and the lovely Llyn Dinas before a left turn at Beddgelert, one of the prettiest villages in north Wales.

From there, the Welsh Highland Railway steam trains ply the route along the steep, forested Aberglaslyn Gorge, which you can see from the stone bridge about two miles (3 km) south of the village.

It continues south towards the coastal town of Porthmadog, and was re-routed as a result of the building of the Cob causeway. The Glaslyn then drifts past the pretty seaside village of Borth-y-Gest before merging with the Dwyryd and flowing into the north-east corner of Cardigan Bay.

6. Afon Dwyryd

Image of the Dwyryd river estuary at sunset North Wales — The Afon Dwyryd at sunset

Image of the Dwyryd eatuary North Wales — The Dwyryd estuary and Rhinog mountains

The Dwyryd river valley – sometimes also called the Vale of Ffestiniog – is one of the loveliest places to see in Wales.

It descends rapidly from the Moelwyn mountains close to Blaenau Ffestiniog before joining forces with several smaller rivers and making for the sea just after the village of Maentwrog.

Once you’re past the row of pylons it’s one of the best places in Wales, a wild, remote area, a massive expanse of tidal sands with the Italianate belltower of the fantasy village of Portmeirion visible across the water.

Visiting Portmeirion is one of the best things to do in Wales. It’s a sublime place to escape the world for a while, with astounding estuary views.

One of the best things to do in Portmeirion is, of course to stay there overnight – either at the riverside Hotel Portmeirion or in one of the cute cottages around the village.

7. River Mawddach – My Favourite Welsh River

Image of Barmouth beach, town, Mawddach estuary Wales — It doesn’t get much better than this – Barmouth beach and the Mawddach estuary

Image of the river Mawddach and Cadair Idris North Wales UK — The Mawddach in summer, looking towards Cadair Idris

Image of the Mawddach river and estuary near Barmouth Wales — Looking towards Barmouth Bridge and the Mawddach estuary

The Afon Mawddach is one of the most beautiful rivers in Europe, with one of the most wondrous estuaries you could ever hope to see. It rises around Trawsfynydd Lake to the north, passing through the Coed y Brenin Forest.

You can get close to the river at the village of Ganllwyd – there’s a small area of ancient oak forest accessible from the car park, leading to the river in its early stages.

A few miles to the south, fed by several tributaries, it changes character dramatically. As it reaches Dolgellau – one of the most intriguing old Welsh towns – it broadens out, luxuriating in the most sumptuous setting, flanked by mountains either side.

It eventually reached the sea at Barmouth, passing under the wooden railway bridge on the way.

The estuary is magnificent, one of the most awe-inspiring I’ve ever seen. Barmouth is a wonderful place from which you can savour it, and our article on things to do in Barmouth goes into much greater depth.

8. Dysynni River

Image of Bird Rock and the Dysynni Valley Wales — Bird Rock and the Dysynni Valley

The Afon Dysynni flows less than 20 miles from the heights of Talyllyn Lake, one of the most picturesque lakes in Snowdonia in the shadow of Cadair Idris.

It flows past the Welsh slate landscape World Heritage village of Abergynolwyn, before passing Bird Rock, the remarkable steep cliff where sea cormorants still nest, despite it now being 4 miles (6 km) inland.

It then passes along a broad floodplain, just to the north of another of the great Cardigan Bay beaches at Tywyn.

9. River Dyfi

Image of the Dyfi estuary Wales from the air — The Dyfi estuary looking inland towards Plynlimon and the Cambrian Mountains

Image of the Dyfi river and estuary Gwynedd Mid Wales — The Dyfi estuary from one of the best sections of the Wales Coast Path – above Aberdyfi

The Dyfi – sometimes anglicized to River Dovey – starts its journey in hilly terrain near the village of Dinas Mawddwy , passing under the 17^th century Minllyn packhorse bridge before flowing past dramatic Welsh hills before reaching the market town of Machynlleth.

Some Led Zeppelin fans may be familiar with the area around which inspired their song ‘Bron-Y-Aur Stomp’.

The estuary is one of the widest in Wales, and many Welsh people think of it as the border between South and North Wales. On the south side, Ynyshir RSPB Reserve draws a steady stream of birdwatchers, and nearby Ynyshir Restaurant With Rooms is one of the best places to stay in Wales, with one of the best restaurants in Wales in-house.

On the north side of the river, Aberdyfi (also spelt Aberdovey) is a fine slightly genteel seaside resort with one of the biggest and best beaches in North Wales. Across the river, Ynyslas dunes are magnificent, a pristine habitat for many rare plants.

See Also: Things To Do In Aberdovey

10. Afon Rheidol

Image of the three bridges at Devils Bridge Wales — The three stacked bridges at Devils Bridge

Image of the river Rheidol at Cwm Rheidol reservoir Mid Wales — Cwm Rheidol reservoir

The River Rheidol follows a typically Welsh river course – short and fairly steep, shaping the whole landscape around it. It runs less than 20 miles (31 km), and you can follow its course on the wonderful Vale of Rheidol Railway from Aberystwyth up to Devils Bridge.

Don’t miss the three bridges stacked on top of each other, a few minutes’ walk from the station. It’s a great day out, one of the best things to do in Mid Wales.

11. River Teifi

Image of the River Teifi flowing through Cors Caron Ceredigion Mid Wales — The Teifi flowing through Cors Caron near Tregaron

I tend to think of the Afon Teifi as the most Welsh of all the rivers in Wales, largely because it runs through the Welsh-speaking heartland of rural Ceredigion.

Its origin is in the Teifi Pools, a series of lakes in the Cambrian Mountains, flowing down to and through the vast Cors Caron (Tregaron Bog – it sounds better in Welsh!), forming the border between Ceredigion and Carmarthenshire thereafter.

Our favourite place on the river is the lovely village of Cenarth, which has a fine old flour mill and the picturesque Cenarth Falls.

Further down the river, Llechryd is one of the few places in Wales where you’re still likely to see fishermen using coracles, traditional Welsh round boats.

After the wooded Teifi Gorge and Cilgerran Castle, the river passes Cardigan (Aberteifi), its recently restored Castle and the lovely Pembrokeshire village of St Dogmaels before opening out into a broad estuary flanked by Gwbert beach on the north side and Poppit Sands on the south.

There are superb coastal walks along the Wales Coast Path on either side.

12. River Solva

Image of boats on the Solva river Pembrokeshire Wales — Boats on the sublime Solva river

The Solva river flows for around ten miles in the far west of Pembrokeshire, eventually reaching St Bride’s Bay.

It flows through farmland before passing through the village of Lower Solva and a classic example of a ria, or flooded coastal valley.

The final section, the steep-sided tidal harbour, makes it one of the most picturesque rivers in Wales. The coastal walks around the estuary are among the best things to do in St Davids and the surrounding area.

Solva is one of the loveliest villages in Wales, essentially a single street with brightly painted houses, art galleries, cafes and pubs.

See Also: Pembrokeshire Road Trip – 5 Days In Glorious West Wales

13. River Tywi – also commonly spelt River Towy

Image of the river Tywi near Llandeilo Wales — The River Tywi near Llandeilo

The Tywi is the longest river in Wales that flows solely within Wales.

It begins its journey in the remote Cambrian Mountains of Mid Wales, passing the man-made reservoir Llyn Brianne before descending through the Tywi Forest and passing the first town on its route, Llandovery.

The lower Tywi is one of the most beautiful landscapes in Wales, a classic meandering valley with rolling green hills passing three castles between Llandeilo and Carmarthen.

It then swings south for the final few miles, passing beneath the ramparts of Llansteffan Castle – one of the most scenically situated of all the castles in South Wales – and out into the enormous expanse of Carmarthen Bay and its endless tidal sands.

14. River Elan

Image of the Elan river in Mid Wales UK — The river Elan just before it is dammed into a series of reservoirs

Image of the Craig Goch dam and reservoir in the Elan Valley Wales — Criag Goch Reservoir and dam, the highest of four in the Elasn Valley

The Afon Elan is a tributary of the River Wye, and follows a short but spectacular course before joining the Wye near the Mid Wales town of Rhayader.

It rises in the Cambrian Mountains, descending quickly to the series of dams that make up the Elan Valley reservoirs.

It’s one of the best places to visit in Wales in autumn, when the forests turn golden brown and fill with fungi – they’re a great place to go foraging.

The dams were built to supply water to supply the nearby English city of Birmingham with water, and are one of the most impressive landmarks in Wales.

You can follow a 20-mile (32 km) loop from Rhayader, taking in all four lakes, or branch off on the mountain road to Cwmystwyth for some serious soul-stirring views on one of the most scenic drives in Wales.

15. Afon Tarell

Image of the Tarell valley in the Brecon Beacons Wales — The Tarell valley is a well-known scenic spot in the Brecon Beacons

One of the most scenic drives in Wales is the section of the main north-south A470 road immediately to the south of the town of Brecon.

The road passes three reservoirs and runs between the high, steep sandstone ridges that characterize the Brecon Beacons. Suddenly there’s a gap, and you follow the road through the dramatic pass at Storey Arms, leading to the sweeping views down towards Brecon and beyond.

This is Glyn Tarell, the Tarell Valley, which only lasts a few miles, passing the twin peaks of Pen y Fan and Corn Du on the right. The A470 runs alongside the river before it meets the River Usk

16. Afon Senni

Image of the Senni Valley Brecon Beacons Wales Uk — The Senni Valley in the Fforest Fawr part of the Brecon Beacons

The backroads of the Brecon Beacons yield many rewards if you keep looking.

A minor road north of the Waterfall Country village of Ystradfellte takes you out onto the moorland of Fforest Fawr, past the ancient Maen Llia standing stone and between the ridges of Blaen Llia and Fan Nedd.

The humble Senni river springs out of the slopes of Fan Nedd and into the gorgeous green patchwork of fields below. It’s one of the loveliest places to visit in South Wales, yet there is room for three, maybe four cars.

All too fleetingly, the river is no more, joining forces with the Usk, the Tarell and numerous others en route to the Bristol Channel.

See Also: Brecon Beacons Waterfalls – 15 gorgeous waterfalls in and around the Brecon Beacons

17. River Usk (Afon Wysg)

Image of the Newport Transporter Bridge and River Usk Wales Uk — The famous Transporter Bridge over the River Usk in Newport

The Usk is one of the longer Welsh rivers, and passes several great Wales destinations along its 70-mile course. It rises in the Carmarthen Fans in the Black Mountain, and runs through Usk Reservoir and east towards Brecon, passing the Beacons and Black Mountains range to the east.

Along the stretch between Crickhowell and Abergavenny, it’s one of the most scenic rivers in south Wales.

It heads south and seawards at Abergavenny, past the Blorenge mountain and Monmouthshire countryside, passing close to the Roman amphitheatre at Caerleon.

It then runs through the city of Newport, by which time it’s subject to the second-highest tidal range in the world. At low tide two huge banks of mud are revealed. In 2002 one of these yielded what is possibly the best preserved medieval ship in Europe, a trading vessel possibly from northern Spain. It seems to have sunk there during repair work.

Newport is well worth a detour to see the superb early 20^th century Transporter Bridge, the longest of its kind in the world, which carries vehicles across the river on a gondola.

18. River Taff

Image of the River Taff and Principality Stadium in Cardiff — The River Taff flows past the Principality Stadium in the centre of Cardiff

The River Taff (Afon Taf) is perhaps the most famous Welsh river, with many a Welsh person beyond the border getting the nickname Taff after this river.

It famously flows through Cardiff, passing close to Castell Coch, Cardiff Castle, the Principality Stadium where Wales play their home rugby internationals, eventually finishing in Cardiff Bay, the hugely redeveloped former docks area of Cardiff.

The Taff starts out as not one river but two – the Taf Fawr (Big Taff) flowing in one direction from the Pen y Fan and Corn Du massif, the Taf Fechan flowing in another.

They meet near the town of Merthyr Tydfil, and the river flows through the South Wales Valleys heartland around Pontypridd before emerging from the Taff Gorge below Castell Coch.

As well as passing several famous Wales landmarks, the river has some lovely scenic stretches which can be explored on the Taff Trail, one of the best long-distance trails in Wales.

19. River Wye

Image of the river Wye in autumn in Mid Wales — The upper Wye valley always gets far less visitors than the lower valley

Image of the river Wye and Hereford Cathedral England UK — Thr Wye and Hereford’s magnificent Cathedral

Image of Bigsweir Bridge and the River Wye Wales — Bigsweir Bridge – Wales to the left, England to the right

The River Wye – Afon Gwy in Welsh – bubbles to the surface in a brightly-coloured bog on the slopes of Plynlimon (Pen Pumlumon Fawr), an expert rain-catching mountain in Mid Wales.

Its source is very close to that of the Severn, and they head off on very different courses before briefly meeting again to enter the Bristol Channel just south of the South Wales town of Chepstow.

The Wye spends far more time in Wales than the Severn does. The upper reaches of the Wye valley north of Rhayader and south of Builth Wells are among the most beautiful places in Wales. Rocky, rugged mountains gradually giving way to softer contours before coming up against the looming outline of the Black Mountains and taking a sharp left.

It then passes the wonderful book town of Hay-on-Wye before crossing the border into England. Its main port of call is the fine city of Hereford, essentially a large country town with a superb cathedral.

Image of the river Wye near Llandogo Wales — The River Wye near the village of Llandogo

Image of the River Wye from the Eagles Nest viewpoint near Chepstow Wales — The Wye from the Eagles Nest viewpoint on the Upper Wyndcliff

After passing the dramatic cliffs of Symonds Yat it returns to Wales, forming the border as it winds its way through the steep wooded hills of the Lower Wye Valley.

This is one of the best places to see Wales in autumn, and the romantic ruin of Tintern Abbey church remains one of the best Wales attractions, just as it was for the first British tourists who explored the Wye Valley 250 years ago.

The river then passes splendid Chepstow Castle before entering the Bristol Channel next to its old neighbour the Severn at the original ‘old’ Severn Bridge.

Even though much of its course is beyond its border, the Wye is one of the most popular rivers in Wales.

20. River Severn

Image of the old Severn Bridge near Chepstow Wales — The first of two bridges over the vast Severn estuary

The Severn – Afon Hafren in Welsh – is the longest river in Britain. It rises in Mid Wales, on the boggy slopes of Plynlimon like its cousin the Wye, and continues through Mid Wales for around 40 miles, flowing through mid Wales towns of Llanidloes, Newtown before crossing into England.

It then runs past famous landmarks in England including the Ironbridge Gorge and Worcester Cathedral before reacquainting itself with Wales just as it – and its old friend the Wye – meets the sea in the Bristol Channel.

Rivers in Wales Map

Rivers In Wales – Final Thoughts

I hope you have enjoyed my guide to the best rivers in Wales to explore.

Travelling along some of these Welsh rivers is a great way to discover more of the country. Following the course of the Dee is a great way to see North East Wales. And a trip along the River Taff takes you from the heights of the Brecon Beacons to Cardiff and the coast via the South Wales Valleys.

These rivers have formed some of the most beautiful landscapes in Wales. So if you’re captivated by this wonderful Welsh scenery, I recommend taking a look at my article on lakes in Wales.

Many people are drawn to the Welsh coast year after year. I have written several guides to beaches around Wales. If you want to see more, start with my feature on the Best Beaches in North Wales and my article on the best Cardigan Bay beaches.

If you’re thinking about visiting South Wales, take a look at my articles on Gower Beaches, Tenby beaches and my Pembrokeshire Road Trip.

And finally, check out some offshore wonders of Wales in my article on the best Welsh Islands to visit.

About the Author: David Angel, a Welsh photographer, writer, and historian, has over 30 years of experience exploring and photographing Wales. As former Art Director and Commissioning Editor for Visit Wales, he has explored every corner of this extraordinary country, climbed its mountains, and walked hundreds of miles along the breathtaking Welsh coastline and landscapes. He now uses a lifetime of experience to write comprehensive guides to help people like you discover and explore the best of Wales. He is a native English speaker and fluent in Welsh.