Editing Whirlpool (section)

=== Corryvreckan ===
{{main|Corryvreckan}}
[[File: Corryvreckan.jpg|thumb|Corryvreckan whirlpool]]
The Corryvreckan is a narrow [[strait]] between the islands of [[Jura, Scotland|Jura]] and [[Scarba]], in [[Argyll and Bute]], on the northern side of the [[Gulf of Corryvreckan]], [[Scotland]]. It is the third-largest whirlpool in the world.<ref name="Doyle2012"/> Flood [[tides]] and inflow from the [[Firth of Lorne]] to the west can drive the waters of Corryvreckan to waves of more than {{convert|9|metres}}, and the roar of the resulting maelstrom, which reaches speeds of {{convert|18|km/h|abbr=on}}, can be heard {{convert|16|km|mi|0|abbr=on}} away. Though it was classified initially as non-navigable by the [[Royal Navy]] it was later categorized as "extremely dangerous".<ref name=" Doyle2012"/>

A documentary team from Scottish independent producers [[Northlight Productions]] once threw a [[mannequin]] into the Corryvreckan ("the Hag") with a [[High-visibility clothing|high-visibility vest]] and [[depth gauge]]. The mannequin was swallowed and spat up far down current with a depth gauge reading of {{convert|262|m|ft|abbr=on}} and evidence of being dragged along the bottom for a great distance.<ref>{{cite web |url= http://ftvdb.bfi.org.uk/sift/title/680755 |title= Equinox: Lethal Seas |access-date= 2 February 2016 |archive-url= https://web.archive.org/web/20140320021700/http://ftvdb.bfi.org.uk/sift/title/680755 |archive-date= 20 March 2014 |url-status= dead }} UK and US co-production by Northlight, "Lethal Seas" UK Channel 4, "Sea Twister!" US Discovery Channel, covers several notable maelstroms.</ref>