What is Derwent Water?
{{Infobox lake | lake_name = Derwentwater | image_lake = Derwent-water.jpg | caption_lake = | image_bathymetry = | caption_bathymetry = (1925) | location = [[Lake District]] | coords = {{coord|54|35|N|3|09|W|region:GB_type:waterbody|display=inline,title}} | type = | inflow = [[River Derwent, Cumbria|River Derwent]], [[Watendlath|Watendlath Beck]], Brockle Beck | outflow = River Derwent | catchment = | basin_countries = England | length = {{convert|4.6|km|mi|1}}<ref name=EA20Lakes/> | width = {{convert|1.91|km|mi|2}}<ref name=EA20Lakes/> | area = {{convert|2|sqmi|abbr=on}} | depth = {{convert|5.5|m|ft|abbr=on}}<ref name=EA20Lakes/> | max-depth = {{convert|22|m|ft|abbr=on}}<ref name=EA20Lakes/> | volume = 29 x 10<sup>6</sup> m³<ref name=EA20Lakes/> | residence_time = 55 days<ref name=EA20Lakes/> | shore = {{convert|9.6|mi|abbr=on}} | elevation = {{convert|75|m|ft|0}} | islands = 4 plus 9 small (13) | cities = | reference =<ref name=EA20Lakes>{{Citation|url=http://www.environment-agency.gov.uk/commondata/103196/1118608|title=Table of lake facts|last=McNamara|first=Jane|publisher=Environment Agency of England and Wales|access-date=2007-11-13|archive-date=2009-06-28|archive-url=https://web.archive.org/web/20090628092540/http://www.environment-agency.gov.uk/commondata/103196/1118608|url-status=dead}}</ref> }} [[Image:Derwentcroped.jpg|thumb]] '''Derwent Water''' or '''Derwentwater''' is one of the main lakes in the [[Lake District National Park]] in north west [[England]]. It is in the Borough of Allerdale in the county of [[Cumbria]]. The [[lake]] lies immediately south of the town of [[Keswick, Cumbria|Keswick]]. It is both fed and drained by the [[River Derwent]]. It is about {{convert|3|mi|km}} long by {{convert|1|mi|km}} wide and is some {{convert|72|ft|m}} deep. There are several islands in the lake, one of which is inhabited. [[Derwent Island House]], an 18th-century residence, is a tenanted [[National Trust for Places of Historic Interest or Natural Beauty|National Trust]] property