Llyn Brianne Dam & Reservoir: A Majestic Water Engineering Marvel in Mid Wales
Experience the grandeur of Europe’s largest stone-built dam reservoir, set amidst stunning Cambrian Mountains with pristine waters and starry skies.
Llyn Brianne Dam & Reservoir, located near Llandovery in mid Wales, is a spectacular stone-built dam standing 91 meters tall, holding over 64 million cubic meters of water. Nestled almost 300 meters above sea level in the Cambrian Mountains, it is the largest reservoir of its kind in Europe. The site offers breathtaking panoramic views, opportunities for walking, mountain biking, bird watching, and stargazing under its Dark Sky Discovery status, with ample parking and picnic facilities nearby.
A brief summary to Llyn Brianne Dam & Reservoir
- Unnamed Road, Llandovery, GB
- Visit website
- Duration: 1 to 4 hours
- Free
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Outdoor
- Mobile reception: 4 out of 5
Local tips
- Bring binoculars for bird watching and a camera to capture the panoramic views and starlit skies.
- Wear sturdy walking shoes to explore the trails around the reservoir and through the surrounding forest.
- Fishing, boating, and swimming are prohibited to protect the water quality—plan accordingly.
- Visit after dark for exceptional stargazing opportunities at this official Dark Sky Discovery Site.
- Use the main car parks near the dam and eastern edge; facilities include toilets and seasonal food vans.
For the on-the-go comforts that matter to you
- Restrooms
- Food Options
- Seating Areas
- Picnic Areas
- Trash Bins
Getting There
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Car
Driving from Llandovery takes approximately 25-35 minutes along rural roads; ample free parking is available at multiple car parks near the dam and reservoir edges.
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Train and Taxi
Take a train to Llandovery station, about 10 miles from the reservoir, then a taxi ride of 25-30 minutes; taxi fares typically range from £30-£40.
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Cycling
Experienced cyclists can reach Llyn Brianne via scenic but hilly routes from Llandovery in about 1.5-2 hours; suitable for mountain bikes due to terrain.
Llyn Brianne Dam & Reservoir location weather suitability
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Any Weather
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Clear Skies
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Rain / Wet Weather
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Cold Weather
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Mild Temperatures
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Windy Conditions
Discover more about Llyn Brianne Dam & Reservoir
Engineering Feat Shaping the Cambrian Landscape
Constructed in the early 1970s, Llyn Brianne Dam is a monumental stone-built structure rising 91 meters (300 feet) tall. It impounds the River Tywi and other waterways to create a reservoir holding over 64 million cubic meters of water, making it the largest reservoir of its kind in Europe by volume. This engineering marvel was designed to supply drinking water to Swansea and surrounding regions, fundamentally transforming the local landscape by flooding valleys and creating South Wales' largest lake.Natural Beauty and Outdoor Activities
Set at nearly 300 meters (990 feet) above sea level in the heart of the Cambrian Mountains, the reservoir is surrounded by a mix of forest and open upland terrain. Visitors can enjoy extensive walking routes around the lake and through adjoining forestry areas, mountain biking trails, and bird watching opportunities. The reservoir's tranquil waters and scenic vistas make it a perfect spot for picnics and nature photography, though activities like fishing, boating, and swimming are strictly prohibited to protect the water quality.A Dark Sky Sanctuary for Stargazers
Llyn Brianne is renowned for its exceptionally clear night skies and was awarded Dark Sky Discovery Site status in 2019, the first in the Cambrian Mountains to receive this honor. Its wide-open horizons and minimal light pollution create ideal conditions for stargazing and astrophotography. Visitors often come to witness spectacular views of the Milky Way, shooting stars, and other celestial phenomena, enhancing the site's appeal beyond daylight hours.Scientific Importance and Environmental Stewardship
Beyond its recreational appeal, Llyn Brianne serves as a significant site for long-term ecological research. Since 1981, scientists have studied the effects of acidification, land use, and climate change on the local streams and biodiversity. The reservoir and its catchment area are managed with a focus on environmental protection, supporting diverse wildlife habitats and contributing to regional conservation efforts.Visitor Facilities and Practical Information
The site offers several car parks, including a main parking area near the dam's spillway and additional parking on the reservoir's eastern and southern edges. Facilities include toilets and seasonal catering vans providing refreshments and snacks. Picnic tables and BBQ areas are available, making it a comfortable spot for day visitors. The nearest railway station is in Llandovery, approximately 10 miles away.Experiencing Llyn Brianne’s Unique Atmosphere
Visitors to Llyn Brianne are greeted by a blend of impressive human engineering and serene natural surroundings. The dam’s stone facade contrasts beautifully with the expansive water body and rolling hills. The peaceful environment invites reflection and exploration, whether through a leisurely walk, a photography session, or quiet stargazing under the vast night sky. The site embodies a harmonious balance of utility, nature, and recreation in mid Wales.Iconic landmarks you can’t miss
Llywelyn Monument
20.9 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.
Radnorshire Wildlife Trust
29.2 km
Experience the breathtaking beauty of Wales at Radnorshire Wildlife Trust, a paradise for nature enthusiasts and wildlife lovers.
YHA Brecon Beacons
31.6 km
Rustic farmhouse hostel offering clean, cozy accommodation and a warm communal atmosphere in the heart of Brecon Beacons National Park.
The Brecon Castle Hotel
31.8 km
Historic Wales’ oldest hotel blending timeless charm with modern comforts near Brecon Beacons National Park.
Duke of Wellington Monument
32.2 km
Historic bronze statue honoring the Duke of Wellington, a commanding presence in Brecon’s town centre and a testament to local artistry and British heritage.
Brecon Barracks
32.7 km
Historic military hub in Brecon, home to the Royal Welsh Regiment and its museum, set within the stunning Brecon Beacons National Park.
Sleeping Giant Bunkhouse
34.4 km
Experience nature's serenity at Sleeping Giant Bunkhouse, your perfect lodge retreat in Upper Swansea, ideal for adventurers and nature lovers.
Pen-y-Fan walk carpark
34.4 km
Discover the gateway to adventure at Pen-y-Fan walk carpark, where breathtaking views and unforgettable hikes await in the heart of Brecon Beacons.
National Trust - Brecon Beacons
34.6 km
Explore breathtaking landscapes and rich history at the National Trust - Brecon Beacons, a must-visit destination for nature lovers and adventurers.
Brecon Beacons
34.6 km
Uncover the breathtaking landscapes and rich cultural heritage of the Brecon Beacons, a top destination for outdoor enthusiasts and nature lovers in Wales.
Pen y Fan
34.7 km
Discover Pen y Fan: the breathtaking peak of the Brecon Beacons, offering stunning views and unforgettable hiking experiences in South Wales.
Corn Du
34.7 km
Discover the breathtaking beauty of Corn Du, a majestic peak in the Brecon Beacons National Park, offering stunning views and unforgettable hiking experiences.
Cantref - Adventure Farm in South Wales
34.8 km
Experience family fun at Cantref Adventure Farm in South Wales, where children can connect with animals and enjoy exciting outdoor activities.
Drostre Wood Nature Reserve
35.1 km
Explore the serene Drostre Wood Nature Reserve, a peaceful haven in Brecon, perfect for hiking, wildlife watching, and enjoying nature's beauty.
Brynich Lock
35.4 km
Experience the serene beauty of Brynich Lock, a tranquil spot along the Brecon & Monmouthshire Canal, perfect for nature lovers and peaceful escapes.
Unmissable attractions to see
National Trust - Abergwesyn Common
7.4 km
Explore the wild Cambrian uplands at Abergwesyn Common, where ancient cairns, dramatic valleys, and sweeping views await in a tranquil Welsh wilderness.
Llettyrhaflaeth Farm
9.3 km
Experience authentic Welsh farm life and tranquil countryside beauty near Llandovery in Carmarthenshire.
Llandovery Castle
14.5 km
Explore the evocative ruins of Llandovery Castle, a medieval fortress with sweeping valley views and rich Welsh history, open year-round with free entry.
National Trust - Dolaucothi
15.3 km
Explore Britain's only Roman gold mine amid scenic Welsh hills with immersive tours, historic machinery, and gold panning fun.
Abaty Ystrad Fflur / Strata Florida Abbey
17.8 km
Explore the evocative ruins of Strata Florida Abbey, a serene medieval Cistercian site nestled in the lush Welsh countryside, rich in history and culture.
The Elan Valley
21.1 km
A remote Welsh wilderness of reservoirs, moorlands, and ancient forests where nature reigns supreme.
FARMERS' Welsh Lavender Ltd
22.0 km
Discover the fragrant lavender fields, artisanal gifts, and serene rural charm of FARMERS' Welsh Lavender Ltd near Builth Wells.
Talley Abbey
22.5 km
Discover the serene beauty and rich history of Talley Abbey, a stunning 12th-century Cistercian monastery nestled in the heart of Wales.
The Red Kite Feeding Station
22.7 km
Experience the breathtaking spectacle of red kites swooping close during daily feedings in the tranquil Welsh countryside.
Castell Du
23.6 km
Explore the evocative ruins of Castell Du, a 13th-century medieval castle commanding river crossings in scenic Breconshire.
The Hungry Hut
24.1 km
A beloved evening takeaway spot in Sennybridge offering hearty, comforting meals in a friendly, casual setting.
Eco Chic Interiors
24.8 km
Discover quirky antiques, creative homewares, and homemade treats at Eco Chic Interiors, a charming boutique in Builth Wells.
Hafod Estate
25.2 km
A 200-hectare picturesque estate with hidden waterfalls, ancient woodlands, and nine miles of restored historic trails.
Quackers
25.3 km
A lively indoor and outdoor play centre in Mid Wales offering fun slides, mazes, go-karts, and party facilities for children and families.
Bwlch y Geuffordd Gardens
25.6 km
Discover a magical wildlife and water garden high above Aberystwyth, where whimsical art and family adventures await in a tranquil Welsh setting.
Essential places to dine
The Castle Hotel
14.4 km
Historic charm and warm Welsh hospitality converge at The Castle Hotel, a cozy retreat in the heart of Llandovery.
Y Talbot Tregaron
15.8 km
Historic 17th-century inn in Tregaron offering award-winning local cuisine, cozy rooms, and a lively bar with authentic Welsh charm.
Castle Coaching Inn
21.3 km
Historic Welsh inn in Trecastle offering cozy rooms, traditional cuisine, and warm hospitality near Brecon Beacons National Park.
The White House
23.5 km
A charming country inn near Brecon Beacons offering warm hospitality, fresh local cuisine, and cozy rooms for a relaxing Welsh getaway.
Usk & Railway Inn
23.6 km
Cozy country inn with hearty local cuisine and premium comfort near Brecon Beacons National Park.
The Tanners Arms
24.7 km
Rustic Welsh pub and cozy B&B nestled in scenic Defynnog, offering hearty food, local ales, and warm hospitality near the Brecon Beacons.
Cosy Corner Bistro
24.8 km
Local ingredients, imaginative cooking, and genuine Welsh hospitality in an intimate High Street bistro.
The Drovers Cafe & Restaurant
24.9 km
Cozy and affordable cafe in Builth Wells serving hearty homemade breakfasts and traditional Welsh fare in a welcoming atmosphere.
The Cwtch Cafe
25.0 km
Cozy family-run cafe in Builth Wells serving Welsh specialties, homemade cakes, and Black Mountain Roast coffee in a friendly atmosphere.
The Lost ARC
26.1 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.
Brasserie at the Elan
26.2 km
Cozy brasserie serving home-cooked, locally sourced Welsh dishes in the heart of Rhayader’s historic Elan Hotel.
The Crown Inn
26.3 km
Traditional Welsh pub and inn in Rhayader offering cozy rooms, hearty local food, and a friendly atmosphere near the scenic Elan Valley.
Ty Morgans
26.3 km
A warm and inviting guesthouse and restaurant in Rhayader, offering fresh local fare, excellent coffee, and cozy accommodations in the heart of Wales.
Lamb & Flag Inn
26.3 km
Experience authentic British cuisine at Lamb & Flag Inn in Rhayader – a perfect blend of tradition and hospitality awaits you.
Drovers
27.7 km
Experience authentic Thai flavors in a cozy village setting at Drovers, Howey’s beloved evening dining spot near Llandrindod Wells.
Markets, malls and hidden boutiques
Llandovery Antiques Centre
14.4 km
Discover timeless antiques, vintage treasures, and unique gifts in the charming market town of Llandovery, nestled near the Brecon Beacons.
Lorwyn Gifts
14.4 km
Discover unique gifts and children’s clothes in the charming boutique of Lorwyn Gifts, nestled in historic Llandovery’s town center.
Anrhegaron | Welsh Gifts
15.9 km
Discover authentic Welsh craftsmanship and unique gifts at Anrhegaron, a charming boutique in Tregaron’s historic market square.
I Am Curious Yellow
24.7 km
Discover vintage treasures and timeless charm at I Am Curious Yellow, Builth Wells’ eclectic antique shop on Smithfield Road.
Penelope Primrose
24.9 km
Discover unique gifts and charming homewares with a personal touch at Penelope Primrose, Builth Wells’ beloved family-run gift shop.
Dolls and Dragons
24.9 km
Discover high-quality toys and baby clothing at Dolls and Dragons, a family-run gem in the heart of Builth Wells’ historic High Street.
Nice Find uk
24.9 km
Discover unique homewares and charming finds in the heart of Builth Wells at Nice Find UK, your local destination for style and quality.
Cribs Clothing
25.0 km
Discover curated ladies' and men's fashion in the heart of historic Builth Wells at Cribs Clothing, your boutique style destination.
The Cwtch Market
25.0 km
Discover authentic Welsh gifts and gourmet treats at The Cwtch Market, a cozy boutique in the heart of Builth Wells.
Hill Walking Outdoor Wear Ltd
26.2 km
Expert outdoor outfitter near Elan Valley, stocking premium hiking brands with personalized Welsh weather guidance.
Quillies
26.4 km
Discover authentic Welsh crafts and unique local artistry at Quillies, Rhayader’s beloved gift shop and cultural hub.
The Little Pink Tree
26.4 km
Discover unique treasures and handcrafted gifts at The Little Pink Tree, a charming gift shop in Rhayader, Wales.
THOSE WERE THE DAYS
29.2 km
Discover timeless Victorian to 1930s antiques in a charming Llandrindod Wells shop filled with history and unique treasures.
Candyman Antiques
29.4 km
Discover timeless antiques and trusted expertise at Candyman Antiques, Llandrindod Wells’ premier vintage jewellery and gold specialist.
Bargain Buys
29.4 km
Affordable homewares and pet care essentials meet unbeatable prices in the heart of Llandrindod Wells.
Essential bars & hidden hideouts
Shoemakers Arms
19.3 km
Charming community-run pub in the heart of Brecon Beacons, offering warm hospitality and authentic Welsh cuisine in a rustic setting.
Golden Lion Inn
24.3 km
A welcoming traditional pub in Newbridge on Wye serving hearty classic meals and fostering genuine village charm.
The Barley Mow Public House
24.8 km
Experience authentic Welsh pub culture with hearty food, local ales, and lively atmosphere at The Barley Mow in Builth Wells.
The White Horse
24.9 km
A charming pub in Builth Wells blending Welsh tradition with modern comfort, known for hearty fare and a friendly atmosphere.
The Fountain Inn
25.0 km
A cozy and friendly pub in Builth Wells serving hearty meals and welcoming guests daily from morning to midnight.
The Black Lion, Abergorlech
25.5 km
A welcoming Welsh country pub in scenic Cothi Valley, serving seasonal local dishes and craft ales near Brechfa Forest.
The Eagles Inn
26.3 km
A historic Welsh pub and inn in Rhayader offering hearty food, friendly service, and a scenic beer garden with mountain views.
The Castle
26.3 km
A friendly, historic pub in Rhayader offering hearty meals, live sports, and a pioneering vegetarian menu in a lively, welcoming setting.
Tafarn y Vale / Vale of Aeron
27.7 km
A warm, community-owned pub in Felinfach offering hearty fare, local ales, and lively events in a welcoming Welsh countryside setting.
The Pwllgloyw Arms
28.1 km
A cozy mountain pub in Powys offering hearty Welsh fare, local ales, and a warm, welcoming atmosphere year-round.
Log Cabin
29.3 km
Discover the warmth and charm of Log Cabin Pub in Llandrindod Wells, where local ales and delicious dishes create a cozy escape.
The Temple Bar Llandrindod Wells
29.4 km
A vibrant Welsh pub in Llandrindod Wells offering local ales, hearty menus, and a warm community atmosphere all week long.
Arvon Ale House
29.4 km
Cozy micropub in Llandrindod Wells offering award-winning real ales, ciders, and a warm, intimate atmosphere for craft beer enthusiasts.
Wheelwright Arms
30.7 km
Cozy village pub in Erwood serving hearty homemade food, local beers, and vegan options in a friendly Welsh countryside setting.
The Salutation Inn
30.8 km
A charming traditional pub in Llandeilo with a friendly atmosphere, quality beers, and a delightful beer garden.
Nightclubs & after hour spots
Jac’s Mansion
25.2 km
Experience welcoming, vibrant LGBTQ+ nightlife at Jac’s Mansion, Builth Wells’ iconic gay nightclub with a lively, inclusive atmosphere.
Northcote Conservative Club
32.1 km
Discover the lively ambiance of Northcote Conservative Club, Brecon's premier destination for nightlife, music, and local culture.
Yokoswnb
39.2 km
A vibrant, budget-friendly nightclub and bar in Aberystwyth, popular with students for its lively atmosphere and central location.
Pier Pressure
39.4 km
Experience Aberystwyth’s vibrant nightlife at Pier Pressure, a lively nightclub set on the historic Royal Pier by scenic Cardigan Bay.
Basement Sessions
39.5 km
Dive into the lively nightlife of Llanidloes at Basement Sessions, where eclectic music and vibrant energy create memorable experiences.
The New Inn
44.3 km
Experience the charm of Welsh hospitality at The New Inn, a delightful pub in Bwlch, perfect for unwinding after exploring Brecon Beacons.
Lucifer's Nightlife
47.4 km
Experience Carmarthen's vibrant nightlife and fast food fusion at Lucifer's Nightlife, where music, dancing, and late-night bites come alive on Queen Street.
Club Mambo
47.4 km
Discover the energetic vibe of Club Mambo, a lively bar in Carmarthen offering delicious drinks and an unforgettable nightlife experience.
The Gremlin Club
47.5 km
Vibrant nightlife and lively open mic nights in the heart of Carmarthen’s social scene.
Savannah's Night Club
47.7 km
Experience Carmarthen’s vibrant nightlife at Savannah's Night Club—where music, dance, and stylish vibes create unforgettable Saturday nights.
The Kirkhouse Nightclub (Koolers)
49.1 km
Experience the vibrant and friendly nightlife of Merthyr Tydfil at The Kirkhouse Nightclub, known locally as Koolers.
Pure Bar & Nightclub Ltd
49.4 km
A lively nightclub and cocktail bar in Merthyr Tydfil offering vibrant music, crafted drinks, and late-night entertainment in South Wales.
Caersws Village Club
49.5 km
A vibrant village club in Caersws offering lively events, warm community spirit, and a welcoming atmosphere in the heart of rural Wales.
The Arch Bar & Nightclub
51.2 km
A lively Neath hotspot blending nightclub energy, live music, pub charm, and Thai cuisine in one vibrant venue.
The Monty Club
53.4 km
A welcoming social and sports club in Newtown with ample space for pool, snooker, darts, and vibrant community events.
For the vibe & atmosphere seeker
- Relaxing
- Tranquil
- Scenic
- Unique
For the design and aesthetic lover
- Rustic Designs
For the architecture buff
- Historic
- Landmarks
- Parks & Gardens
For the view chaser and sunset hunter
- Iconic Views
- Panoramas
- Sunrise Spots
- Sunset Spots
- Stargazing
For the social media creator & influencer
- Instagrammable
- Photo Spots
- Selfie Spots
- Aesthetic Corners
For the eco-conscious traveler
- Protected Area
- Public-Transport Accessible
- Leave-No-Trace Critical
- Locally Managed
- Wildlife Habitat
For the kind of experience you’re after
- Nature Escape
- Photowalk
- Cultural Heritage
- Mindfulness
- Spiritual / Energy Spot
For how adventurous you want the journey to be
- Easy Access
Location Audience
- Family Friendly
- Senior Friendly
- Child Friendly
- Teen Friendly
- Wheelchair Access
- Pet Friendly
- Solo Friendly
- Couple Friendly
- Vegetarian Friendly
- Vegan Friendly