Night diving is an excellent way to get a glimpse of a totally 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
When you turn off your scuba flashlight and wave your arms in water, you can witness the wonders of night diving bioluminescence. The blue light from bioluminescent plankton will glow as your arms move around the water. This happens when certain chemicals are vibrated and produce light.
Many marine species use bioluminescence for communication and to attract mates. Syllid fireworms, which live in mucus tubes under the seafloor and return to the surface on the full moon, are an example.
Take Care
You should be aware of the following precautions if you are new to night diving. These precautions include avoiding exposure to excessive light, and avoiding the use of dive lights. These lights can cause night vision problems for other divers. Additionally, exposing yourself to these lights may increase your risk of cardiac irregularities.
Not only should you limit your light exposure but also must you use a buddy partner. A dive partner is extra important when night diving. A buddy can help you identify potential subjects. Be sure to practice hand signals with your partner before you go on the dive. Be sure to teach your buddy how to properly use the light. To avoid direct light on the subject, instead aim it at them with your flashlight.
Equipment
Special equipment is necessary for night dives. Make sure you have backup lighting. This type of light is usually small enough to carry in your pocket. Also, you should have a modeling flashlight. This is a pinpoint light that attaches to a strobe. Divers used to use chemical glowsticks to guide them back to the boat. But environmental concerns led to the introduction of battery-operated signal lamps with different colored lenses.
You will also need a quality diving light and a compass. A light that allows you to communicate with other divers is also essential. You will also need to know how your diving rig works. Lastly, you must be comfortable diving at night. You should immediately get out if you feel unsafe. It doesn't matter whether the cause is poor training, bad weather, water conditions, or anything else, if you don't feel safe, you could find yourself in a dangerous spot. It is important to avoid using substances that could impair your ability to discern the truth.
Choosing 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. Sticking to the basics will help you get comfortable and make your first night dive a success. You can dive in the twilight or go deeper later.
You will need to research in order to choose the best night dive location. There are many factors you need to consider. You'll need to look for a site where night diving has been done 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.
Night dive buddy
It can be hard to find a night-diving buddy. You must be cautious when diving at night as the water changes very quickly. The water is also colder than during the day, so a night diver must be extra warm. It is not something anyone wants to feel uncomfortable or make the dive difficult.
Talk to your night dive buddy about your dive plans and any special instructions before diving in the dark. You should also discuss the order you would like to complete your dive. You should also discuss how you will communicate, including using hand signals and light signals.