Editing Buoy (section)

===Navigational buoys===
* '''Race course marker buoys''' are used for buoy racing, the most prevalent form of [[yacht racing]] and power boat racing. They delimit the course and must be passed to a specified side. They are also used in [[underwater orienteering]] competitions.
* [[Emergency wreck buoy|'''Emergency wreck buoys''']] provide a clear and unambiguous means of temporarily marking new wrecks, typically for the first 24–72 hours. They are coloured in an equal number of blue and yellow vertical stripes and fitted with an alternating blue and yellow flashing light. They were implemented following collisions in the Dover Strait in 2002 when vessels struck the new wreck of the {{Ship|MV|Tricolor}}.<ref>{{cite web|url=http://www.trinityhouse.co.uk/lighthouses/buoys/emergency_wreck.html |title=Emergency Wreck Buoys &#124; Navigation Buoys &#124; Trinity House |access-date=2014-05-26 |url-status=dead |archive-url=https://web.archive.org/web/20140702032424/http://www.trinityhouse.co.uk/lighthouses/buoys/emergency_wreck.html |archive-date=2014-07-02 }}</ref>
* '''Ice marking buoys''' mark holes in frozen lakes and rivers so snowmobiles do not drive over the holes.
* '''Large Navigational Buoys''' (LNB, or [[Lanby buoy|'''Lanby buoys''']]) are automatic buoys over 10&nbsp;meters high equipped with a powerful light monitored electronically as a replacement for a [[lightvessel]].<ref>{{Cite web|title=Large Navigational Buoys (LNB)|url=http://www.uscg.mil/history/articles/LNB.asp|publisher=United States Coast Guard|access-date=Jul 6, 2015}}</ref> They may be marked on charts as a "Superbuoy."<ref name=":0">{{Cite book|title=US Chart No. 1|author=National Oceanic and Atmospheric Administration|publisher=NOAA|year=2013|location=Silver Spring|pages=89}}</ref>
* [[Navigational aid#Lateral marker|'''Lateral marker''']] '''buoys'''
* '''[[Safe water mark]],''' [[Fairway Buoy|'''fairway buoys''']], or '''outer buoys''' mark the entrance to a channel or nearby landfall
* [[Sea mark|'''Sea marks''']] aid [[pilotage]] by marking a [[Shipping|maritime]] channel, hazard or administrative area to allow [[boat]]s and [[ship]]s to [[navigate]] safely. Some are fitted with wave-activated bells or gongs.
* '''Wreck buoys''' mark a wrecked ship to warn other ships to keep away because of unseen hazards.
* [[wikt:light buoy|'''Light buoys''']] provide demarcation at night.