Llyn Clywedog Dam
A towering concrete dam in the Cambrian Mountains, holding back a vast reservoir and offering dramatic views, walking trails, and a peaceful escape into Mid Wales.
Llyn Clywedog Dam is a striking concrete dam in Mid Wales, holding back a vast reservoir in the Cambrian Mountains. Standing 72 metres high, it’s one of the tallest mass concrete dams in Britain, offering panoramic views, walking trails, and a dramatic backdrop of moorland and hills. The area is popular for hiking, fishing, and photography, with Glyndŵr’s Way passing beneath the dam and the ruins of Bryntail Lead Mines nearby. A circular drive around the reservoir provides multiple viewpoints and picnic spots, making it a peaceful destination for nature lovers and outdoor enthusiasts.
A brief summary to Llyn Clywedog Dam
- Unnamed Road Llanidloes, Llanidloes, SY18 6NZ, GB
- Duration: 1 to 4 hours
- Budget
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Outdoor
- Mobile reception: 3 out of 5
- Monday 12 am-12 am
- Tuesday 12 am-12 am
- Wednesday 12 am-12 am
- Thursday 12 am-12 am
- Friday 12 am-12 am
- Saturday 12 am-12 am
- Sunday 12 am-12 am
Local tips
- Visit the Look Out viewing platform above the dam for the best panoramic views of the reservoir and surrounding hills.
- Wear sturdy footwear and bring waterproofs; the trails around the dam and Bryntail Lead Mines can be muddy and exposed to the weather.
- Check in advance if you plan to fish; the reservoir is managed by the Llanidloes Angling Society, and day permits are required.
- Drive carefully on the narrow, winding roads around the reservoir, especially in low light or poor weather conditions.
For the on-the-go comforts that matter to you
- Restrooms
- Drink Options
- Drinking Water
- Food Options
- Seating Areas
- Sheltered Areas
- Picnic Areas
- Trash Bins
- Information Boards
Getting There
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By car from Llanidloes
From Llanidloes, follow the B4518 north towards Llyn Clywedog. The drive takes about 15–20 minutes along a narrow, winding country road. Parking is available at the dam viewing area and at several points around the reservoir, with free access for visitors.
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By public transport and taxi
The nearest railway station is Caersws, about 16 km away. From there, a taxi to Llyn Clywedog Dam takes around 20–25 minutes. There is no direct bus service to the dam, so a taxi or pre‑arranged transfer is necessary for those relying on public transport.
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On foot via Glyndŵr’s Way
Glyndŵr’s Way National Trail passes beneath the dam and along the southern shore of the reservoir. Walkers can approach from Llanidloes or nearby trailheads, with the section around the dam offering some of the route’s most dramatic scenery and views.
Llyn Clywedog Dam location weather suitability
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Any Weather
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Rain / Wet Weather
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Clear Skies
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Windy Conditions
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Mild Temperatures
Discover more about Llyn Clywedog Dam
Engineering on the Edge of the Cambrians
Rising 72 metres above the valley floor, Llyn Clywedog Dam is a feat of mid‑20th‑century engineering, built between 1965 and 1967 to regulate the flow of the upper River Severn. Constructed from around 200,000 cubic metres of concrete, it’s one of the tallest mass concrete dams in Britain, holding back a reservoir that stretches six miles and covers 615 acres. The dam was designed both to protect against winter flooding and to maintain a minimum summer flow in the Severn, ensuring water supply for communities downstream. Its sheer scale and clean, modern lines contrast dramatically with the wild, rolling hills of the Cambrian Mountains, creating a powerful sense of human intervention in a remote landscape.Views, Walks and the Dragon’s Back
Above the dam, a viewing platform known as the Look Out offers sweeping panoramas across the reservoir and surrounding moorland. From here, the lake stretches into the distance, framed by hills like Bryn y Fan, while the Glyndŵr’s Way National Trail passes beneath the dam and follows the southern shore. A short circular walk starting from the dam’s viewing area, often called the Glyndŵr’s Circular Walk, follows the ridge known locally as the dragon’s back, delivering exhilarating views over the reservoir and the surrounding valleys. Further afield, the Clywedog Gorge Trail explores the remains of the Bryntail Lead Mines, where crumbling stone buildings and mine workings sit in a quiet, atmospheric gorge just below the dam.Water, Wildlife and the Wider Landscape
Llyn Clywedog Reservoir is not only a water management structure but also a haven for wildlife and outdoor recreation. The lake is stocked with brown and rainbow trout, making it a well‑regarded fly‑fishing destination, while the Clywedog Sailing Club runs activities and events on the water. Ospreys can often be seen hunting over the reservoir between April and August, and the surrounding hills and forests support a range of upland birds and mammals. The reservoir lies close to Hafren Forest and the source of the River Severn on Plynlimon, placing it at the heart of a wider network of trails and natural attractions in Mid Wales.Exploring the Reservoir and Its Surrounds
A circular drive around the reservoir, following a network of improved country roads, allows visitors to stop at several viewpoints and picnic areas. These spots offer different perspectives on the dam and lake, from close‑up views of the concrete structure to wide‑angle vistas across the water. The road is narrow and winding, typical of the Cambrian Mountains, so drivers should take care, especially in poor weather. Alongside the drive, informal paths and trails lead to quieter corners of the shoreline, where the sound of the wind and water replaces the hum of traffic. The area is particularly atmospheric at dawn and dusk, when the light plays across the water and the surrounding hills take on a moody, almost otherworldly quality.Iconic landmarks you can’t miss
Machynlleth Town Clock
21.6 km
Historic Machynlleth Town Clock, a Victorian landmark symbolizing community pride and Welsh heritage in the heart of Penrallt Street.
Radnorshire Wildlife Trust
29.6 km
Experience the breathtaking beauty of Wales at Radnorshire Wildlife Trust, a paradise for nature enthusiasts and wildlife lovers.
Brynellen
31.1 km
Explore Bryn Celli Ddu, a 5,000-year-old Neolithic passage tomb on Anglesey, famed for its ancient burial chamber and summer solstice alignment.
Cerig y Penrhyn
31.1 km
Explore the enchanting Cerig y Penrhyn, a historical landmark in Wales that showcases the region's rich cultural heritage and stunning natural beauty.
Ffridd Faldwyn, Montgomery
31.6 km
Explore the vast Iron Age hillfort of Ffridd Faldwyn, commanding the Severn Valley with ancient earthworks and panoramic Welsh landscapes.
Nwy Prydain Beacon
32.9 km
Historic beacon atop Constitution Hill offering panoramic coastal views and a glimpse into Aberystwyth’s industrial heritage.
Castle Hotel
33.5 km
Historic charm and cozy comfort converge at Aberystwyth’s Castle Hotel, a welcoming coastal retreat with unique drinks and friendly hospitality.
Talyllyn Railway - Tywyn Wharf Railway Station
35.2 km
Experience the historic Talyllyn Railway in Tywyn, where scenic train journeys and rich heritage create unforgettable moments in stunning Welsh landscapes.
National Trust - Powis Castle and Garden
35.9 km
Explore the rich history and breathtaking gardens of Powis Castle, a majestic National Trust property in the heart of Wales.
Radnor Forest
36.3 km
Experience the stunning landscapes and tranquility of Radnor Forest, a perfect destination for hiking and nature lovers in the heart of Mid-Wales.
Fforest Glud / Radnor Forest
36.3 km
Explore the serene beauty of Fforest Glud and Radnor Forest, a natural haven in Wales perfect for hiking, wildlife watching, and peaceful retreats.
Llywelyn Monument
36.7 km
A solemn granite monument at Cilmeri honors Llywelyn the Last, marking the site where Wales’ final native prince fell in battle, symbolizing a pivotal moment in Welsh history.
Welshpool Cockpit
37.3 km
Discover Welshpool Cockpit, an 18th-century octagonal historic landmark blending unique architecture with vibrant community heritage in the heart of Welshpool.
Cymer Abbey
37.7 km
Explore the enchanting ruins of Cymer Abbey, a historic site nestled in the heart of Snowdonia National Park, perfect for history lovers and nature enthusiasts.
Precipice Walk
38.0 km
Explore the enchanting Precipice Walk in Dolgellau, a hiking paradise offering breathtaking views, rich wildlife, and a perfect escape into nature's beauty.
Unmissable attractions to see
Bryntail Lead Mine Buildings
0.2 km
Explore the evocative ruins of a 19th-century Welsh lead mine nestled beside Llyn Clywedog Reservoir, blending industrial heritage with serene natural beauty.
River Severn
4.8 km
Discover the serene origins of Britain’s longest river at Llanidloes, where the River Severn begins its majestic journey through Welsh landscapes.
The Store Cupboard
4.9 km
Discover fresh, local organic produce and specialty health foods in the heart of Llanidloes at The Store Cupboard.
Ffrwd Fawr Waterfall
8.0 km
Discover the serene beauty of Ffrwd Fawr Waterfall, a 40-meter cascade nestled in Wales’ lush Pennant Valley.
Glaslyn Nature Reserve
11.1 km
Experience the wild beauty and tranquil upland vistas of Glaslyn, the Cambrian Mountains’ largest nature reserve and a haven for heather moorland and rare wildlife.
Gilfach Nature Reserve
16.1 km
A rewilded Welsh hill farm where nature has reclaimed the landscape, offering exceptional wildlife viewing and accessible trails through the Cambrian Mountains.
Silver Mountain Experience
18.9 km
Explore 250 years of Welsh mining history and myth in a thrilling underground adventure set in the stunning Cambrian Mountains.
Hafod Estate
19.6 km
A 200-hectare picturesque estate with hidden waterfalls, ancient woodlands, and nine miles of restored historic trails.
Devil's Bridge Waterfalls
19.7 km
Experience the awe-inspiring triple bridges and cascading 300-foot waterfalls deep in Wales’ enchanting Cambrian Mountains.
TimeScape Rhayader
19.8 km
Explore Rhayader’s rich heritage and vibrant local creativity at TimeScape Rhayader, a welcoming cultural hub in the heart of town.
Falconry Experience Wales (Strictly by Appointment only)
19.8 km
Experience the thrill of flying hawks and falcons in the serene Welsh countryside at this exclusive, appointment-only falconry centre.
The Steam Mill
20.1 km
Experience Newtown’s vibrant nightlife at The Steam Mill, the town’s lively nightclub and social hotspot in the heart of Broad Street.
Bwlch Nant yr Arian Forest Visitor Centre
20.1 km
A hilltop forest retreat near Aberystwyth with stunning views, waymarked trails, and daily red kite feeding.
Bear Lanes
20.1 km
A practical town-centre shopping hub in Newtown, Powys, with a mix of national chains and local shops for everyday needs and gifts.
The Robert Owen Museum
20.1 km
Explore the birthplace and legacy of Robert Owen, a pioneer of social reform and the cooperative movement, in Newtown’s historic timber-framed museum.
Essential places to dine
The Trewythen
4.9 km
Elegant Georgian charm meets modern comfort and fine dining in the heart of Llanidloes, mid-Wales.
The Raj Mahal
5.0 km
Savor authentic Indian cuisine with generous portions and warm hospitality in the heart of Llanidloes.
Arthurs Restaurant & Bar
7.9 km
A welcoming Welsh countryside restaurant serving fresh local dishes with cozy indoor charm and unique outdoor dining pods.
The Aleppo Merchant Inn Ltd
10.7 km
A warm, family-run pub and inn in Carno offering hearty local fare, cozy rooms, and a lively Welsh village atmosphere.
Jo’s at The Lion
11.4 km
A cozy café within the Lion Hotel serving delicious, accommodating meals in the heart of Llandinam, Wales.
Mid Wales Inn & Restaurant
14.2 km
A cozy traditional inn and pub in Pant-y-dwr offering hearty food, comfortable rooms, and warm Welsh hospitality near Rhayader.
Lamb & Flag Inn
19.8 km
Experience authentic British cuisine at Lamb & Flag Inn in Rhayader – a perfect blend of tradition and hospitality awaits you.
The Crown Inn
19.8 km
Traditional Welsh pub and inn in Rhayader offering cozy rooms, hearty local food, and a friendly atmosphere near the scenic Elan Valley.
The Lost ARC
19.8 km
A warm, creative café in Rhayader’s old Drill Hall, serving excellent coffee, generous homemade food and a strong line in vegan and gluten-free treats.
Ty Morgans
19.9 km
A warm and inviting guesthouse and restaurant in Rhayader, offering fresh local fare, excellent coffee, and cozy accommodations in the heart of Wales.
Brasserie at the Elan
19.9 km
Cozy brasserie serving home-cooked, locally sourced Welsh dishes in the heart of Rhayader’s historic Elan Hotel.
hummingbird lounge
20.1 km
Experience authentic Caribbean cuisine with vibrant flavors and welcoming vibes at Newtown’s beloved Hummingbird Lounge.
The Granary
20.2 km
Contemporary dining with local flavors and lively entertainment in the heart of Newtown, Powys.
Waggon and Horses
20.7 km
A friendly Newtown pub with a cosy beer garden, diverse menu, and welcoming atmosphere for families, dog owners, and locals alike.
Gwen Restaurant and Wine Bar
21.5 km
An intimate 8-seat fine dining experience in Machynlleth, blending bold flavors and local ingredients with expert wine pairings.
Markets, malls and hidden boutiques
White Leaf Clothing Boutique
4.9 km
Discover stylish, quality women's and men's apparel with personalized service at White Leaf Clothing Boutique in the heart of Llanidloes.
The Little Pink Tree
19.9 km
Discover unique treasures and handcrafted gifts at The Little Pink Tree, a charming gift shop in Rhayader, Wales.
Quillies
19.9 km
Discover authentic Welsh crafts and unique local artistry at Quillies, Rhayader’s beloved gift shop and cultural hub.
Hill Walking Outdoor Wear Ltd
19.9 km
Expert outdoor outfitter near Elan Valley, stocking premium hiking brands with personalized Welsh weather guidance.
No1 High Street
20.1 km
Discover unique local treasures and handcrafted gifts in the heart of Newtown at No1 High Street, a charming and welcoming gift shop.
Famous Shop
20.3 km
Explore the charm of Newtown at Famous Shop, where local crafts and unique gifts await every visitor.
The little welsh gift shop
21.1 km
Discover personalized Welsh gifts and authentic engraved slate treasures in the heart of Mid Wales at The Little Welsh Gift Shop.
Charlies Stores
21.5 km
A comprehensive homewares and DIY store in Newtown offering tools, garden supplies, and workwear with friendly service and extended hours.
Ian Snow
21.5 km
Discover ethically sourced vintage Indian furniture and bohemian homewares in a charming family-run shop in the heart of Machynlleth.
Bargain Buys
29.6 km
Affordable homewares and pet care essentials meet unbeatable prices in the heart of Llandrindod Wells.
THOSE WERE THE DAYS
29.7 km
Discover timeless Victorian to 1930s antiques in a charming Llandrindod Wells shop filled with history and unique treasures.
Black Cat Shop Llandrindod Wells
29.7 km
Discover unique handmade gifts, elegant fashion accessories, and artisan crafts at Black Cat Shop, a charming boutique in Llandrindod Wells.
Candyman Antiques
29.7 km
Discover timeless antiques and trusted expertise at Candyman Antiques, Llandrindod Wells’ premier vintage jewellery and gold specialist.
The Window Dressers
32.4 km
Bespoke curtain makers in historic Montgomery offering personalized window dressings that blend tradition with style and function.
Made In Monty
32.4 km
Discover authentic Welsh crafts and unique gifts in the heart of historic Montgomery at Made In Monty.
Essential bars & hidden hideouts
Tybrith
10.8 km
A cozy, rustic pub in Carno offering authentic Welsh hospitality and local ales in a warm, welcoming atmosphere.
The Eagles Inn
19.7 km
A historic Welsh pub and inn in Rhayader offering hearty food, friendly service, and a scenic beer garden with mountain views.
The Castle
19.9 km
A friendly, historic pub in Rhayader offering hearty meals, live sports, and a pioneering vegetarian menu in a lively, welcoming setting.
Buck Inn
20.1 km
Historic 17th-century pub in Newtown with lively karaoke, real ales, and a warm, inclusive atmosphere for all.
The Sportsman
20.2 km
A lively and welcoming Newtown pub serving quality drinks and hearty fare in a friendly, dog-friendly setting with a charming beer garden.
The Railway Tavern
20.4 km
A cozy, welcoming pub in Newtown with great ales, roaring fires, and a lively community spirit all year round.
Bull & Heifer
23.1 km
Cozy country pub in Bettws Cedewain serving classic British dishes with warm hospitality and rustic charm.
Gwernydd Arms
23.3 km
A welcoming traditional pub in New Mills, offering hearty meals, local ales, and a tranquil patio in the heart of Powys countryside.
The Kerry Lamb
23.7 km
A cozy pub in Kerry, Powys, serving fresh homemade British classics with a warm, welcoming atmosphere and great value.
Y Llew Gwyn
25.7 km
A welcoming traditional Welsh pub overlooking Talybont’s village green, famed for its cozy atmosphere, quality ales, and hearty homemade food.
The Red Lion
27.4 km
A beloved traditional Welsh pub in Llanfair Caereinion, offering local ales, hearty meals, and a charming beer garden for a relaxed and authentic experience.
Y Llew Coch - The Red Lion
28.4 km
A historic Welsh inn in Dinas Mawddwy offering cozy fires, local ales, hearty meals, and charming B&B stays amid Snowdonia’s scenic beauty.
The Radnorshire Arms
29.2 km
Historic 17th-century Welsh pub offering hearty meals, local ales, and warm hospitality in the tranquil Teme Valley near Knighton.
The Sarn
29.3 km
A renovated rural pub in Newtown offering hearty food, friendly service, and a cozy atmosphere with a charming beer garden.
The Upper House Inn
29.6 km
A welcoming rural pub in Llandyssil offering classic Welsh hospitality, great value drinks, and hearty local fare in a cozy countryside setting.
Nightclubs & after hour spots
Basement Sessions
5.0 km
Dive into the lively nightlife of Llanidloes at Basement Sessions, where eclectic music and vibrant energy create memorable experiences.
Caersws Village Club
12.9 km
A vibrant village club in Caersws offering lively events, warm community spirit, and a welcoming atmosphere in the heart of rural Wales.
The Monty Club
20.1 km
A welcoming social and sports club in Newtown with ample space for pool, snooker, darts, and vibrant community events.
Yokoswnb
33.3 km
A vibrant, budget-friendly nightclub and bar in Aberystwyth, popular with students for its lively atmosphere and central location.
Pier Pressure
33.4 km
Experience Aberystwyth’s vibrant nightlife at Pier Pressure, a lively nightclub set on the historic Royal Pier by scenic Cardigan Bay.
Jac’s Mansion
38.2 km
Experience welcoming, vibrant LGBTQ+ nightlife at Jac’s Mansion, Builth Wells’ iconic gay nightclub with a lively, inclusive atmosphere.
The Club Barmouth
41.6 km
Experience vibrant Saturday nights at The Club Barmouth, where stylish vibes meet lively music by the scenic Welsh coast.
New Horizons
46.4 km
Experience vibrant nightlife and lively music at New Horizons, Dyffryn Ardudwy’s welcoming nightclub with spaces for all ages.
Bryn Arms
57.2 km
A cozy pub in Gellilydan offering hearty homemade meals, lively events, and charming gardens for a welcoming Welsh experience.
Brecon Working Mens Club
59.8 km
Experience authentic Welsh hospitality at Brecon Working Mens Club, where locals gather for drinks and camaraderie in a charming setting.
The Lounge Bar & Cafe
59.8 km
Experience the vibrant nightlife of Brecon at The Lounge Bar & Cafe, where crafted cocktails and a lively atmosphere await.
BRECON JAZZ
59.8 km
Experience the soulful sounds of Brecon Jazz, an intimate venue celebrating the rich heritage of jazz music in the heart of Wales.
The Sarah Siddons
59.9 km
Experience the heart of Welsh hospitality at The Sarah Siddons, a cozy pub in Brecon offering local ales and hearty dishes.
The Rorkes Drift
59.9 km
Discover the heart of Brecon at The Rorkes Drift, a quintessential pub offering hearty meals and a welcoming atmosphere for all travelers.
Brecon Jazz Club (Muse Arts Centre)
59.9 km
Discover the heart of jazz in Brecon at the Brecon Jazz Club, where live music and a vibrant atmosphere collide for an unforgettable night.
For the vibe & atmosphere seeker
- Relaxing
- Tranquil
- Scenic
- Unique
For the design and aesthetic lover
- Modern Designs
- Rustic Designs
For the architecture buff
- Historic
- Modern
- Landmarks
- Parks & Gardens
- Heritage Neighborhoods
For the view chaser and sunset hunter
- Iconic Views
- Panoramas
- Waterfront
- Skyline
For the social media creator & influencer
- Instagrammable
- Photo Spots
- Selfie Spots
- Aesthetic Corners
- Architectural Shots
For the eco-conscious traveler
- Public-Transport Accessible
- Protected Area
- Nature Reserve
For the kind of experience you’re after
- Cultural Heritage
- Photowalk
- Nature Escape
- Day Trip
- Weekend Getaway
For how adventurous you want the journey to be
- Easy Access
- Requires Hike
Location Audience
- Family Friendly
- Senior Friendly
- Child Friendly
- Teen Friendly
- Wheelchair Access
- Solo Friendly
- Couple Friendly
- Solo Female Friendly
- Business Friendly
