Largest lakes & reservoirs in United Kingdom by shoreline length
The length of the exterior shoreline around a lake is measured at the lake’s normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal. A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.When known, the shoreline miles that we report in our statistics include only the lake’s exterior shoreline, and exclude the shorelines of islands located within a lake’s boundaries. In lakes with many islands, those islands’ combined shorelines may exceed a lake’s exterior shoreline.
You can find many of the world’s longest-shoreline lakes on LakeLubbers. Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 43 articles we have published for United Kingdom lakes.
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Below are lakes within United Kingdom > Compared by longest shoreline length in miles. This list does not represent all lakes in United Kingdom, only the 43 United Kingdom lake articles we have published on the LakeLubbers website.
Lake name | Shoreline length in miles | Lake description |
---|---|---|
Llyn Brenig (North Wales Region, UK, United Kingdom, Wales, United Kingdom) |
14 mi | Also known as Lake Brenig, Llyn Brenig Reservoir Llyn (Lake) Brenig is a sparkling 920-acre (3.7 square kilometer) reservoir located in North Wales, in the heart of the Denbigh moors. Nestled between … |
Loch Duich (Highlands & Moray Region, Scotland, Scotland, United Kingdom, United Kingdom) |
14 mi | Mysterious and romantic, beautiful Loch Duich holds a special place in the history and hearts of Scotland’s West Highlands. Loch Duich featured promin … |
Coniston Water (England, England's Northwest Region, United Kingdom) |
13 mi | Also known as Conison Lake, Coniston, Thurston Water, The Lake District Coniston Water is in England’s Lake District, its spectacular landscapes making it an impressive tourist attraction in its own right. However, Conisto … |
Lake Vyrnwy (Mid Wales Region, UK, United Kingdom, Wales, United Kingdom) |
12 mi | Also known as Llyn Efyrnwy, Vyrnwy Reservoir Lake Vyrnwy (Llyn Efyrnwy in Welsh) is a beautiful man-made reservoir constructed in 1888 to provide the City of Liverpool with a reliable and plentif … |
Bassenthwaite Lake (England, England's Northwest Region, United Kingdom) |
11 mi | Also known as Bass Lake, Bassenwater, Broadwater, The Lake District Bassenthwaite Lake is a scenic peaceful lake located in England’s Lake District. In this land of many lakes, Bassenthwaite Lake is the only body of wa … |
Derwentwater (England, England's Northwest Region, United Kingdom) |
10 mi | Also known as Derwent Water, Derwentwater Lake, The Lake District Cumbria, in northwest England, is home to Lake District National Park, established in 1951. All of the land in England that exceeds an elevation of 3, … |
Ladybower Reservoir, England (East Midlands Region, England, England, United Kingdom) |
7 mi | Also known as Ladybower Lake The hunter waits patiently for the birds to emerge at Ladybower Reservoir. There is a rustle then the grouse break cover, their wings thrumming and be … |
Llangorse Lake (Southern Wales Region, UK, United Kingdom, Wales, United Kingdom) |
5 mi | Also known as Llangors Lake, Lake Syfaddan, Lyn Syfaddan Sitting within Brecon Beacons National Park, Llangorse Lake stands as the largest natural lake in South Wales and second largest in the principality o … |
Buttermere (England, England's Northwest Region, United Kingdom) |
3 mi | Also known as The Lake District Located among the western lakes in England’s Lake District, ruggedly beautiful Buttermere is one of a chain of three spectacular lakes. Running from n … |
Greenlee Lough (England, North East England Region, United Kingdom) |
2 mi | Also known as Roman Wall Loughs Located in Northumberland National Park, Greenlee Lough is Northumberland County’s largest natural lake. Considered one of the Roman Wall Loughs, Gree … |
Loughrigg Tarn (England, England's Northwest Region, United Kingdom) |
1 mi | Also known as Diana's Looking Glass Loughrigg Tarn is a charming country lake set in northwest England’s Lake District National Park. The calm water of this peaceful lake mirrors wooded … |
Brotherswater (England, England's Northwest Region, United Kingdom) |
1 mi | Also known as Brothers Water, Broad Water, The Lake District Surrounded by green fields, grazing sheep and scenic hillsides, Brotherswater is found in northwest England’s Lake District National Park. At 47 acres … |