Night diving is a way to experience a completely different underwater world. Many marine animals, including many sea creatures, are more active at night. This makes the underwater environment very different. To experience this special diving environment, you will need to prepare yourself for the experience. Learn more about what equipment you will need and how you can choose a diving site.
Bioluminescence
Bioluminescence can be experienced during night dives by simply turning off your torch and waving in the water. Bioluminescent plankton will light up blue as you move your arms around the water. This occurs when certain chemicals become vibrated and create light.
Bioluminescence is used by many marine animals to communicate with one another and attract mates. Syllid fireworms for example live under the seafloor in mucus tube and then return to the surface when the full moon is over.
Be aware
If you've never dived at night before, there are several precautions that you must follow. These precautions include avoiding excessive light and avoiding using dive lights. These lights could cause night vision issues for other divers. Additionally, exposing yourself to these lights may increase your risk of cardiac irregularities.
In addition to limiting your light exposure, you must also use a buddy team. Night diving requires a dive partner. Your buddy will be able to help you identify potential subjects. Before you dive, be sure to practice hand signals together. Your buddy should be able to correctly use the light. To avoid direct light on the subject, instead aim it at them with your flashlight.
Equipment
Special equipment is required for night diving. Make sure you have backup lighting. This type is often small enough to fit in your pocket. You should also have a modeling light, which is a pinpoint light attached to a strobe. In the past, divers used chemical glow sticks to find their way back to the boat after the dive, but environmental concerns have led to a switch to battery-operated signal lights with different colored lenses.
A compass and a good dive light are also essential. You will also need a light that gives you the ability to communicate with other divers. You also need to know how to use your diving rig's gauges. You must also be able to dive at night. You should immediately get out if you feel unsafe. Whether the reason is lack of training, bad weather, or water conditions, if you're not comfortable, you may end up in a dangerous situation. It is important to avoid using substances that could impair your ability to discern the truth.
Selecting a dive site
If you want to dive at night, it is important to choose a site that is calm and shallow. It's not a good idea to add more gear or take a camera on your first dive. You will feel more comfortable and have a better night dive. You can start out by diving in the twilight and go deep later on.
To choose the right night dive site, you'll want to do your research. There are many aspects that you will need to consider. You should choose a site with a history of night diving if you have never done it before. You can use the day to locate and map the dive sites. It's easier and warmer to dry your equipment during the day.
Choosing a night dive buddy
The choice of a night diver buddy can be challenging. The water changes quickly after sunset, so you must slow down to avoid hitting anything. Night diving is required to be more comfortable in the water. Being cold can make it uncomfortable and unpleasant.
Your night dive buddy should discuss your dive plan and any special requirements before you go. This includes how you plan to complete the dive. Additionally, you should discuss how and when you will communicate.