
The Derwent is a river in the county of Cumbria in the north of England; it rises in the Lake District and flows northwards through two of its principal lakes, before turning sharply westward to enter the Irish Sea at Workington The name Derwent is shared with three other English rivers and is thought to be derived from a Celtic word for "oak trees".

The River Cocker is a river in the Lake District in North West England, in the county of Cumbria. Its source is at the head of the Buttermere valley. It flows north through Buttermere and then Crummock Water, through Lorton Vale, to the town of Cockermouth, where it joins the River Derwent. It is roughly 12 miles (19 km) long. The river takes its name from the Brythonic Celtic word kukrā, meaning 'the crooked one.'

The Dash Valley is a small valley in the English Lake District. It has only one dwelling, Dash Farm, the fields of which spread right across the valley. The valley is flanked on the northern side by Great Cockup, and on the southern side by Bakestall, part of the Skiddaw massif. At the head of the valley Dash Beck, the river which flows through the valley, falls dramatically forming Dash Falls, which Wainwright called the finest succession of falls in the Lake District.
The River Greta is a river in Cumbria, England. It is a tributary of the River Derwent and flows through the town of Keswick. "Greta" derives from the Old Norse "Griótá", meaning "stony stream". The name is in records dating from the early 13th century, and also appears in Latinised form, as "Gretagila", at the time of Magna Carta.

The River Marron is a river of Cumbria, England.

Newlands Beck is a minor river of Cumbria in England.
Stonethwaite Beck is a minor river in Cumbria, England. It is a tributary of the River Derwent.

The River Glenderamackin, the Glendermackin or Glendermackin Beck is a watercourse in Cumbria, England. It is a headstream of the Greta.

Glenderaterra Beck is a watercourse in the county of Cumbria, England. The length of the Glenderaterra, and its major tributary Whit Beck is 4.8 miles (7.8 km), which have a total catchment area of 11.8 square kilometres (4.6 sq mi).

Keskadale Beck is a minor river of Cumbria, England.

Naddle Beck is a minor river of Cumbria, England.

Scope Beck is a minor river in the county of Cumbria in England.

St. John's Beck is a river in the Lake District of Cumbria, England.

Mosedale Beck is a river in Cumbria, England, which rises on the northern slopes of Great Dodd and flows north east, to the south of Clough Head before joining the River Glenderamackin to the east of Threlkeld village. This then flows west, alongside the A66 road south of Blencathra, to form the River Greta which flows into the River Derwent.

Bassenthwaite Lake is one of the largest water bodies in the English Lake District. It is long and narrow, approximately 4 miles (6.4 km) long and 0.75 miles (1 km) wide, but is also extremely shallow, with a maximum depth of about 70 ft (21 m).

Derwentwater, or Derwent Water, is one of the principal bodies of water in the Lake District National Park in north west England. It lies wholly within the Borough of Allerdale, in the county of Cumbria.
Watendlath is a hamlet and tarn in the Lake District in the English county of Cumbria, historically part of Cumberland,

Trout Beck is a 7.6 miles (12.3 km) long stream or beck in the English Lake District, Cumbria. It rises on the northwestern slopes of Great Dodd, with tributaries including Groove Beck and Thornsgill Beck, and flows east then north to the hamlet of Troutbeck. It then flows west, parallel to and south of the A66 road, going just south of Hutton Moor End then under the old Hutton Moor Road at Wolt Bridge where it joins the River Glenderamackin.