Night Diving

(Underwater Diving Procedure)

Logo of Night diving
Underwater Diving Procedure
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What is Night diving?

Night diving is underwater diving done during the hours of darkness. It frequently refers specifically to recreational diving which takes place in darkness. The diver can experience a different underwater environment at night, because many marine animals are nocturnal. There are additional hazards when diving in darkness, such as dive light failure. This can result in losing vertical visual references and being unable to control depth or buoyancy, being unable to read instruments such as dive computers and diving cylinder contents gauges, and potential separation from the rest of the diving group, boat, or shore cover. Even with a functioning light, these hazards are still present in night diving. Backup lights are recommended. Normal requirements for night diving are a dive light, and adequate protection from exposure. Some precautions and skills for night diving include: avoiding shining the light in other divers' eyes, to be aware of and use surface light signals for bearings, and if appropriate to use an illuminated shotline buoy. A surface marker buoy with an attached strobe light or cyalume stick can be used to indicate the position of the divers to the surface team. The use of a strobe light by a diver under water can damage the night vision of other divers.

Technology Types

underwater diving procedure


Night diveNight diver


Immersione notturna (it)Nachtduik (nl)Nachttauchen (de)Plongée de nuit (fr)

Tech Info

Source: [object Object]
 — Date merged: 11/6/2021, 1:32:56 PM
 — Date scraped: 5/20/2021, 6:22:09 PM