Llyn Trawsfynydd: Snowdonia’s Expansive Reservoir and Natural Haven
Explore Llyn Trawsfynydd, a vast reservoir in Snowdonia offering fishing, scenic trails, abundant wildlife, and tranquil natural beauty.
Llyn Trawsfynydd is a large artificial reservoir nestled in the heart of Snowdonia National Park, North Wales. Spanning about 1,200 acres and stretching roughly five miles, this scenic lake offers diverse fishing opportunities, tranquil walking trails, and abundant wildlife, including varied waterfowl and occasional ospreys. With a café and fishing lodge on site, it’s a peaceful destination for anglers, hikers, and nature lovers alike.
A brief summary to Llyn Trawsfynydd
- Trawsfynydd, LL41 4DT, GB
- +441766540313
- Visit website
- Duration: 2 to 6 hours
- Mid ranged
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Outdoor
- Mobile reception: 4 out of 5
Local tips
- Bring suitable fishing gear if you plan to fish; permits are required and available at the lodge.
- Wear sturdy footwear for walking the 8.7-mile circular trail around the lake, which includes varied terrain.
- Visit the on-site café for refreshments and local fishing advice.
- Check seasonal fishing regulations, especially for brown trout and rainbow trout seasons.
- Bring binoculars for birdwatching, especially to spot waterfowl and occasional ospreys.
For the on-the-go comforts that matter to you
- Restrooms
- Drink Options
- Food Options
- Seating Areas
- Picnic Areas
- Trash Bins
- Information Boards
Getting There
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Car
Driving is the most convenient way to reach Llyn Trawsfynydd. From nearby towns such as Dolgellau or Porthmadog, expect a 20 to 40-minute drive via the A470 trunk road. Ample parking is available near the café and fishing lodge. Note that some rural roads may be narrow and winding.
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Bus
Limited local bus services connect Trawsfynydd village with Dolgellau and Porthmadog, with travel times around 30 to 50 minutes depending on the route. From the village, a taxi or a 2-3 mile walk on rural roads is needed to reach the lake. Check current schedules as service frequency is low.
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Taxi
Taxis are available from nearby towns such as Dolgellau or Porthmadog, with typical fares ranging from £20 to £35 depending on distance. This option offers flexibility for those without a car, especially given limited public transport.
Llyn Trawsfynydd 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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Mild Temperatures
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Windy Conditions
Discover more about Llyn Trawsfynydd
A Man-Made Marvel in Snowdonia’s Heart
Llyn Trawsfynydd is a vast artificial reservoir located near the village of Trawsfynydd in Gwynedd, North Wales, within the stunning Snowdonia National Park. Covering approximately 1,200 acres (around 4.8 square kilometers) and extending about five miles in length, it ranks as one of Wales’ largest lakes. Unlike many natural lakes in the region, the valley beneath the water holds remnants of fields, stone walls, and farmhouses, a submerged landscape that would reemerge if the lake were drained.Rich Aquatic Life and Fishing Traditions
The lake supports a healthy population of wild brown trout and is regularly stocked with quality rainbow trout, making it a popular multi-method fishery. Anglers can fish from extensive bank areas or boats, with seasons running from February to December for rainbows and April to November for browns. Coarse fish such as perch, rudd, and pike also inhabit the waters. The lake’s average depth of about 12 feet favors floating or intermediate fishing lines, with top-water fishing being particularly rewarding. The Prince Albert Angling Society manages the fishery, offering permits and a tackle shop at the on-site lodge.Scenic Trails and Wildlife Watching
Surrounding Llyn Trawsfynydd are peaceful walking and cycling trails, including an 8.7-mile circular route that showcases rolling hills, woodland paths, and occasional glimpses of historic ruins. Birdwatchers can enjoy an abundance of waterfowl along the shores and islands, with occasional osprey sightings adding to the natural allure. The lake’s setting amid Snowdonia’s rugged landscape provides panoramic views of nearby mountain ranges such as the Rhinogs, Cader Idris, and Snowdon.Historical Context and Environmental Recovery
Originally a valley of farms and fields, the area was flooded to create the reservoir, which later served as a cooling water source for the now-decommissioned Trawsfynydd Nuclear Power Station. Since the station’s closure in 1990, the lake’s ecosystem has rebounded, with natural insect life and aquatic biodiversity increasing noticeably. This environmental recovery has enhanced the lake’s appeal as a habitat for freshwater species and a tranquil retreat for visitors.Visitor Facilities and Local Hospitality
The lake is equipped with a café and fishing lodge providing refreshments, fishing permits, and local advice. Ample parking is available on-site, making it accessible for day visitors. Nearby accommodation options include hostels, holiday villages, and self-catering cottages that cater to a range of budgets and preferences, many offering scenic views and proximity to outdoor activities like hiking and mountain biking.A Year-Round Destination for Outdoor Enthusiasts
Llyn Trawsfynydd welcomes visitors throughout the year, with fishing seasons spanning most months and walking trails accessible in all seasons. Its combination of natural beauty, recreational opportunities, and peaceful atmosphere makes it an ideal spot for anglers, hikers, birdwatchers, and those seeking a serene escape within Snowdonia’s diverse landscape.Iconic landmarks you can’t miss
Snowdonia Adventure Activities
5.1 km
Discover outdoor adventure in Snowdonia with thrilling activities surrounded by stunning landscapes, perfect for all adventure enthusiasts.
Ynys Cyngar
13.9 km
Historic maritime landmark on the Glaslyn estuary, offering scenic coastal views and a glimpse into North Wales’ slate and shipping heritage.
Castell Carndochan
16.4 km
Explore the evocative ruins of Carndochan Castle, a remote 13th-century Welsh fortress nestled in the rugged mountains of Gwynedd.
National Trust - Tŷ Mawr Wybrnant
17.6 km
Explore the historic Tŷ Mawr Wybrnant, a charming farmhouse in Snowdonia, rich in Welsh culture and surrounded by breathtaking natural beauty.
The Mawddach Trail
18.2 km
Explore the breathtaking Mawddach Trail, where stunning landscapes meet tranquil pathways, perfect for hikers and cyclists alike in Wales.
Aber-marchnad
19.2 km
Historic coastal market site at Criccieth, marked by resilience and scenic views beside the iconic castle ruins.
Tal-y-bont beach
19.2 km
Experience the breathtaking beauty of Tal-y-bont Beach, a serene coastal retreat ideal for relaxation and adventure in the heart of Wales.
Castell Cricieth
19.3 km
Explore Criccieth Castle, a historical gem offering breathtaking views and rich Welsh heritage on the stunning coast of Cardigan Bay.
Criccieth
19.4 km
Discover Criccieth, a charming coastal village in North Wales with stunning beaches, historic castles, and a vibrant local culture for every traveler.
Gwydir Forest Park
19.6 km
Discover the natural beauty and historical charm of Gwydir Forest Park, a breathtaking national park in Snowdonia, perfect for outdoor adventures and serene escapes.
Moel Berfedd
19.6 km
Discover the breathtaking views and serene landscapes of Moel Berfedd, a scenic point in Caernarfon, perfect for nature lovers and adventurers.
Yr Wyddfa
19.6 km
Discover the breathtaking beauty and adventure of Yr Wyddfa, the highest peak in Wales, nestled in the stunning Snowdonia National Park.
Gorsaf Copa'r Wyddfa Summit Station
19.6 km
The high-altitude terminus of the Snowdon Mountain Railway, offering panoramic views and access to the summit of Wales’ highest mountain.
Moel y Garnedd
20.3 km
Experience the breathtaking beauty of Moel y Garnedd, a scenic point in Wales that offers stunning views and outdoor adventures.
Garnedd Ugain
20.3 km
Wales’ second-highest peak, part of the dramatic Snowdon Horseshoe, with sweeping views and rugged alpine terrain.
Unmissable attractions to see
Magnox
1.7 km
Explore the UK's only inland nuclear power station, a unique blend of industrial heritage and natural beauty in Snowdonia National Park.
Hairy Dog Crafts
1.8 km
Discover authentic Welsh wool blends and artisan crafts in the serene hills of Snowdonia at Hairy Dog Crafts.
Tomen y Mur
2.4 km
Explore the evocative ruins of Tomen y Mur, a Roman fort and Norman motte steeped in history and Welsh legend amid Snowdonia’s wild landscape.
SNOWDONIA
3.4 km
Explore Snowdonia’s majestic peaks, rich heritage, and thrilling adventures in Wales’ iconic national park.
Eryri National Park (Snowdonia)
3.4 km
Discover Wales’ wild heart in Eryri National Park—where towering peaks, rich heritage, and tranquil landscapes await every adventurer.
Yr Ysgwrn
3.5 km
Step into the tranquil Welsh farmhouse of poet Hedd Wyn and explore a moving legacy of culture and history in Snowdonia National Park.
Ceunant Llennyrch National Nature Reserve
5.0 km
Explore ancient temperate rainforest, dramatic waterfalls, and rare mosses in the tranquil gorge of Ceunant Llennyrch within Snowdonia National Park.
Plas Tan y Bwlch
5.5 km
Historic 18th-century manor and environmental study centre nestled in scenic Snowdonia with Grade II* gardens and pioneering hydro-electric heritage.
Coedydd Maentwrog National Nature Reserve
6.3 km
Step into a Welsh temperate rainforest: ancient oaks, moss-draped trees, rare bats and the whistle of a steam train in the valley below.
Llyn Tecwyn Isaf
6.4 km
A peaceful lake retreat near Talsarnau, perfect for gentle hikes, fishing, and soaking in the tranquil Welsh countryside.
Cwm Cynfal viewpoint
6.6 km
Discover sweeping views of Snowdonia’s peaks, tranquil valleys, and shimmering bays from this serene and accessible Welsh viewpoint.
Gwaith Powdwr North Wales Wildlife Trust Nature Reserve
7.7 km
Explore the tranquil wildlife haven set on a historic explosives factory site with stunning estuary views and rare species in North Wales.
Blaenau Ffestiniog Waterfalls
8.9 km
Discover the serene beauty and rugged charm of Blaenau Ffestiniog Waterfalls, a captivating hiking destination in North Wales.
Cwmorthin Waterfall
9.0 km
Discover the serene Cwmorthin Waterfall amid historic slate quarry ruins and reflective lake views in the heart of North Wales.
Ffestiniog Railway - (Blaenau Festiniog, Station)
9.3 km
Experience the world’s oldest narrow-gauge steam railway from Blaenau Ffestiniog through Snowdonia’s breathtaking landscapes.
Essential places to dine
Bryn Arms
3.1 km
Experience authentic Welsh cuisine and warm hospitality at Bryn Arms in beautiful Blaenau Ffestiniog.
The Grapes Hotel, Bar & Restaurant
4.9 km
A welcoming traditional inn with hearty home-cooked meals and stunning Snowdonia views in the heart of Maentwrog.
De Niros
9.3 km
Cozy and affordable café-restaurant in Blaenau Ffestiniog serving hearty meals and vegan-friendly options in a welcoming atmosphere.
Castell Deudraeth Brasserie
10.1 km
Historic castle dining with contemporary Welsh cuisine and scenic mountain views in the heart of Portmeirion Village.
Caffi Castell Harlech
12.3 km
A cozy café in Harlech’s Castle Square serving fresh Welsh produce daily amid historic charm.
The Plas Restaurant
12.4 km
Savor traditional Welsh flavors with stunning views of Harlech Castle at The Plas Restaurant on Harlech’s High Street.
Good Mood restaurant
12.5 km
A stylish Italian and burger restaurant offering harbour views and vibrant dining within Porthmadog’s historic Madoc Yacht Club.
Yr Hen Fecws Restaurant and B&B
12.6 km
A cosy bistro and charming B&B in Porthmadog offering fine seasonal dining and warm Welsh hospitality in the heart of Snowdonia.
Y Sgwâr
13.6 km
Experience warm hospitality and exquisite British-European cuisine in the heart of historic Tremadog at Y Sgwâr.
Caffi Colwyn
15.4 km
Charming family-run café in Beddgelert with cosy interiors, a peaceful riverside tea garden, and a menu catering to all tastes including vegan and gluten-free options.
Caffi Gwynant
15.4 km
Charming converted chapel café in Snowdonia serving hearty breakfasts, homemade cakes, and local delights in a warm, rustic setting.
Y Bistro yn yr Hebog
15.5 km
A cozy family-run bistro in Beddgelert offering exquisite local cuisine and warm hospitality in the heart of Snowdonia.
Dylan's Criccieth
18.7 km
Experience fresh Welsh seafood and stunning sea views in a charming Art Deco setting at Dylan's Criccieth on the North Wales coast.
Nineteen.57
18.9 km
Experience family-friendly dining at Nineteen.57 in Islawrffordd Caravan Park – great food, welcoming atmosphere, and delightful drinks await!
Yr Eagles Llanuwchllyn
19.0 km
A warm, welcoming village pub and restaurant in Llanuwchllyn offering local flavors, friendly service, and a cozy community atmosphere in Snowdonia.
Markets, malls and hidden boutiques
SPAR Penrhyn
8.5 km
Discover SPAR Penrhyn, your convenient shopping destination in Penrhyndeudraeth, offering local favorites and essentials for every traveler.
Bron y Garth Emporium
9.2 km
Discover authentic Welsh craftsmanship and vintage treasures at Bron y Garth Emporium, a charming multi-building homewares shop in Penrhyndeudraeth.
Co-op Food - Blaenau Ffestiniog
9.4 km
Your friendly Co-op Food store on Blaenau Ffestiniog’s High Street, offering fresh, ethical groceries and community care every day.
Siop y Gloddfa
9.4 km
Discover authentic Welsh crafts and unique local gifts in the heart of Blaenau Ffestiniog’s historic slate town.
Maricraft Slate World
10.2 km
Discover exquisite handcrafted Welsh slate art in the historic heart of Blaenau Ffestiniog’s legendary quarry.
Pot Jam
10.4 km
Discover authentic Welsh jams, chutneys, and local treats in the charming pantry shop of Portmeirion’s scenic village.
The Ship Shop
10.4 km
Discover unique gifts and local charm at The Ship Shop, nestled in the enchanting Italianate village of Portmeirion, North Wales.
Seasons & Reasons
12.3 km
Discover the charm of Harlech at Seasons & Reasons, your ultimate DIY store for home improvement and creative projects.
Pwts
12.4 km
Discover unique Welsh gifts and homewares at Pwts, a charming independent shop near Harlech Castle offering artisan treasures and local craftsmanship.
Castle Gift Shop
12.4 km
Discover authentic Welsh gifts and souvenirs at this charming family-run shop opposite historic Harlech Castle.
Wool & Gifts Harlech
12.4 km
Discover authentic Welsh wool crafts and charming gifts in the heart of historic Harlech’s Castle Square.
Cymru Country Store
12.4 km
Discover authentic Welsh gifts and crafts at Cymru Country Store, Porthmadog’s charming souvenir shop on High Street.
Pop Local And Beyond
12.4 km
Discover authentic Welsh handmade gifts and homeware at Pop Local and Beyond, supporting local artisans in the heart of Porthmadog.
Crafts North Wales
12.5 km
Discover authentic handmade crafts and local treasures at Crafts North Wales, a charming gift shop in the heart of Porthmadog.
The Original Factory Shop (Porthmadog)
12.6 km
Discover unbeatable deals on quality clothing, beauty, and footwear at The Original Factory Shop in the heart of Porthmadog.
Essential bars & hidden hideouts
Oak
8.5 km
A traditional Welsh pub in Penrhyndeudraeth offering friendly atmosphere, well-kept Marston’s ales, hearty food, and a genuine local experience.
Y Manod
8.8 km
A friendly, dog-welcoming pub with quality ales and warm hospitality in the heart of Bethania, Blaenau Ffestiniog.
Meirion Vaults
9.3 km
Experience authentic Welsh hospitality with local ales and hearty meals at Meirion Vaults, Blaenau Ffestiniog’s cherished traditional pub.
The Brondanw Arms
9.6 km
A charming Welsh country pub in Llanfrothen offering hearty food, local ales, dog-friendly warmth, and stunning countryside views.
Clwb Llyn Bach
12.5 km
A lively pub and social club in Porthmadog offering spirited nights, friendly service, and a welcoming atmosphere for locals and visitors alike.
The Australia
12.5 km
A lively Purple Moose Brewery pub in Porthmadog offering hearty pub fare, vegan options, and a welcoming atmosphere with local craft beers.
Tafarn Pencei
12.6 km
Historic Grade II listed pub on Porthmadog’s harbour, serving traditional ales and diverse food in a welcoming Welsh atmosphere.
The Ship Inn/ Y Llong
12.6 km
A traditional Welsh pub in Porthmadog offering hearty homemade meals and a warm, welcoming atmosphere steeped in maritime heritage.
Red Lion
12.7 km
A welcoming traditional Welsh pub in Porthmadog with a spacious beer garden, pool table, and lively atmosphere for locals and visitors alike.
The Union Inn
13.6 km
Historic 19th-century village pub in Tremadog offering cozy rooms, traditional Welsh fare, and a warm, welcoming atmosphere.
Black Rock Beach Club
14.8 km
Stylish beachside dining and drinks with heated outdoor terrace, BBQ flavors, and a welcoming vibe in Morfa Bychan, North Wales.
Tafarn Glanaber
14.9 km
Cozy coastal bar and restaurant in Morfa Bychan serving fresh Welsh seafood with stunning sea views and a warm, relaxed atmosphere.
Tanronnen Inn
15.4 km
Traditional Welsh inn and pub in scenic Beddgelert, offering cozy rooms, hearty home-cooked meals, and warm hospitality near Snowdon.
Prince Llewelyn Hotel
15.5 km
Charming historic hotel in Beddgelert with cozy rooms, hearty dining, and stunning mountain views in the heart of Snowdonia.
The Eagles Bunkhouse
17.0 km
Cozy traditional inn and lively hostel in Penmachno, perfect for exploring Snowdonia’s natural beauty and enjoying authentic Welsh hospitality.
For the vibe & atmosphere seeker
- Relaxing
- Tranquil
- Scenic
- Fun-filled
- Unique
For the design and aesthetic lover
- Rustic Designs
- Colorful Aesthetics
For the architecture buff
- Parks & Gardens
- Historic
- Viewpoints
For the view chaser and sunset hunter
- Iconic Views
- Panoramas
- Waterfront
- Sunrise Spots
- Sunset Spots
For the social media creator & influencer
- Instagrammable
- Photo Spots
- Selfie Spots
- Aesthetic Corners
For the eco-conscious traveler
- Eco-Friendly
- Low Impact
- Public-Transport Accessible
- Locally Managed
For the kind of experience you’re after
- Nature Escape
- Cultural Heritage
- Photowalk
- Day Trip
- Weekend Getaway
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
- Couple Friendly
- Solo Friendly
- Solo Female Friendly
- Vegetarian Friendly
- Vegan Friendly
