Science & nature · Evidence-backed
Wast Water: England's Deepest Lake
Wast Water is a ribbon lake in the Wasdale Valley of the western Lake District National Park, Cumbria. At 79 metres (258 feet) deep, it holds the record as England's deepest lake. Its striking scree slopes, towering fells including Scafell Pike and Great Gable, and remote atmosphere make it one of the most photographed and geologically significant bodies of water in the country.
Discover the dramatic geography, glacial origins, and outdoor appeal of Wast Water, the deepest lake in England, set beneath the Lake District's highest peaks.
England's deepest lake at 79 metres
Wast Water reaches a maximum depth of 79 metres (258 feet), making it the deepest lake in England. Its surface sits around 61 metres (200 feet) above sea level, while the lake bed descends more than 15 metres (50 feet) below sea level. This extreme depth is a direct result of glacial over-deepening during the last Ice Age.
Classic ribbon lake formed by glacial action
Wast Water is a textbook ribbon lake — long, narrow, and deep — carved by a glacier that gouged out the Wasdale Valley. The same glacial forces created the dramatic Wastwater Screes on the eastern shore, where shattered rock tumbles steeply into the water. The lake stretches almost 4.8 kilometres (three miles) in length and reaches over 500 metres (one-third mile) wide.
Dramatic scree slopes define the eastern shore
The Wastwater Screes are among the Lake District's most iconic landforms. Massive fields of angular boulders and gravel cascade from the summits of Whin Rigg and Illgill Head directly into the lake, creating a stark, unvegetated amphitheatre. These screes are unstable and actively shifting, a visible reminder of ongoing freeze-thaw weathering in a post-glacial landscape.
Framed by England's highest peaks
The lake is cradled by some of England's highest mountains: Scafell Pike (978 metres / 3,209 feet), Great Gable (899 metres), and Kirk Fell (802 metres). Scafell Pike, the highest point in England, rises at the head of the valley. These fells create a natural amphitheatre that amplifies the lake's sense of enclosure and scale, drawing fell walkers and mountaineers year-round.
Located in the remote Wasdale Valley
Wast Water lies in Wasdale, a deep glacial valley in the western Lake District National Park, Cumbria. Its coordinates are 54°26′30″N 3°17′30″W. The valley's isolation — far from major towns and accessed by narrow roads — preserves a wild character that contrasts with busier eastern lakes such as Windermere and Derwentwater.
Surface elevation and sub-sea-level basin
The lake surface sits at approximately 61 metres (200 feet) above ordnance datum, yet its deepest point lies more than 15 metres (50 feet) below sea level. This unusual hypsometry means a significant portion of the lake's volume occupies a cryptodepression — a basin floor below sea level — a rare feature among English lakes and a direct legacy of glacial erosion cutting below the former base level.
Popular for wild swimming and paddle sports
Wast Water's clear, cold water attracts wild swimmers, kayakers, paddleboarders, and sailors. The lake is open to non-motorised craft, and its dramatic backdrop makes it a sought-after venue for open-water swimming events. Visitors are advised to check conditions, wear appropriate safety gear, and be prepared for rapid weather changes on the surrounding fells.
Extensive fell-walking and hiking network
The area offers routes from gentle lakeside paths to challenging mountain ascents. Popular trails include the 13.3 km View of Wast Water loop from Boot, the 9 km Wast Water – The Mill Café loop from Wasdale, and the 11.2 km Seatallan summit loop. Many hikers use the valley as a base for climbing Scafell Pike and other Wainwright fells. The Komoot community rates the trail network 4.5 stars from over 750 reviews.
Folklore: the ghost of a drowned woman
Local legend holds that Wast Water is haunted by the spirit of a woman who drowned in the lake. She is said to appear on the water's surface on calm nights. Such tales are common in deep, isolated upland lakes across Britain and reflect the awe and unease these dark, cold waters have inspired in communities for centuries.
1945 RAF crash memorial on the fells
On 1945, a Royal Air Force aircraft crashed into the mountainside above Wast Water, killing all eight crew members. Wreckage remains visible on the fellside, and a memorial plaque commemorates the loss. The site is visited by walkers and military history enthusiasts, adding a layer of 20th-century human history to the valley's ancient landscape.
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