Even a known sight appears different at night, which makes night diving unique. When you go for a day dive, you usually scan the entire dive site and look about. Only the area of the dive site illuminated by your light is visible at night. This causes you to slow down and focus on just one thing. However, like everything else, night diving is not all about glories and needs time to get more perfection. Here are some tips to increase your night diving experience.
Before that the night plunge, dive into the site in the day time
Prior to the night dive, most liveaboards will require you to participate in a day dive. Even if it isn't needed, we strongly advise visiting the site when the sun is still shining. Because you've previously visited the region, you'll be much more comfortable during your night dive, and you'll know whether you need to alter any of your diving equipment or add more weight prior to your nighttime scuba session.
Try to dive in dusk in shallow water
Allow enough time before nightfall—around 10 to 15 minutes before dusk—to do pre-dive safety checks, and then jump in while it's still light. As the day creatures retire for the night, you'll get the extra benefit of witnessing nocturnal wildlife come about looking for food.
Also, remain in low sections of the water to avoid becoming disoriented as you move deeper. You could be thinking that you'll miss out on the marine creatures swimming about. But don't worry; because you're observing from a safe distance, you won't miss anything.
Know the signals right
Communication is one of the aspects of night diving that is more difficult than day diving. Before getting in the water, you and your friend should go over hand signals and decide which ones you'll use. You can choose between two options: One option is to shine the light on your hands so that your companion can see what you're saying. The second option is to use your flashlight to transmit signals. By moving your light in a circle, up and down, or side to side, you may signal "OK" and "Yes" or "No." You may even draw your friend's attention to yourself by circling or "lassoing" his light beam and dragging it toward you. Your partner will know what you're doing if you've practised previously.
Don’t miss on keeping the primary light and a spare
On your night dive, the only major light you will see is the light you produce. That is why it is critical to have a dependable light and a backup in the case that your primary light fails. There are several things to consider while selecting the main light, the most significant of which are the strength, beam, and battery type.
Avoid going deep if it’s your first experience with night diving
Stay at the shallow depths if you're new to night diving. Even if you're a seasoned night diver, there's no need to go deep, especially if you've spent the day in and out of the water. Because you can only see what is lighted in the light of your torch beam during night dives, depth and visibility do not have as big of an influence as they do during day dives. Maintain a modest dive depth and take in the vivid colours and marine life that you can only see in the dark.