When diving at night, communication between divers is extremely difficult. It is essential to establish clear communication between divers during pre-dive briefings and then double-check them during dive. You should also choose shallow dive sites with no strong currents. For optimum safety, divers should opt for sites that are well-lighted.
Night diving
Night diving is a wonderful way to discover the underwater world. Nighttime diving is safer than daytime diving. You will also be able see things that you might otherwise miss such as nurse sharks or lobster. But while diving at night, there are certain rules and safety precautions you should keep in mind.
Safety
Night diving is not without danger. The first concern is lack of visibility. A current can sweep you away if you can't see the underwater environment. To reduce the dangers of night diving, you should always have a couple of dive lights on hand. To ensure you always know where you are, you can attach them to your BCD and dive tank.
Equipment
Some of the essential pieces of night dive equipment include lights and submersible pressure gauges. These lights will allow you to see clearly and offer safety for other divers. The submersible pressure gauge will alert you when your oxygen level is low.
Acquiring a certification
You might be interested in night diving if you are looking to learn more. Night diving is an extremely popular activity and certification in this field has many benefits. However, obtaining this certification requires a certain amount of gear. For night dives you need to bring a secondary and primary dive light.
Animals that can emit their own light
Two methods can be used to emit light from bioluminescent creatures: One is by absorption of light from the environment, and the second is by emitting back light. The process is known as bioluminescence and requires a complex chemical reaction involving a special class of proteins. The proteins that generate the light are called luciferase. These proteins emit cold light that gives off very little heat, which is necessary because the bioluminescent organisms would otherwise die if they had too much heat. Most animals and humans emit light to a small degree but normally it is not noticeable.
Begin a night diving trip with your buddy by riding the train together
Night diving requires communication to be successful. To signal your buddy, you can use hand gestures such as flicking the light in a circle or flicking it with your finger. Or, you can simply hold your light near your hand and wave it to your buddy. This will help your buddy see the light better than if he were only holding it.