As you know there are different types of scuba diving. Each one has its own characteristic features and peculiarities. Each type is full of unforgettable moments and impressions. However, nothing can be compared with a night dive ( just my opinion , feel free to disagree 
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Scuba diving at night is something different, something unbelievable and indescribable. But I promise to do my best to tell you what a night dive is.
Night dive may sound some kind of scary to people who haven’t dived in the dark, but it is much more interesting and enjoyable than any other type of diving. The underwater life thoroughly changes at night. There are very many things you’ll see only at night, things you can’t witness during the daytime. Those who once dived at night want to return to it again and again.
The reefs awaken with new species of plants and animals. Crabs and lobsters are especially active at night. Everything around is glowing in the silence of the night.
Diving at night is a real adventure, and I advise every diver to try it. Bear in mind that you should be well-prepared for the night dive. Let me give you some valuable advice on diving at night.
First of all remember that you shouldn’t dive too deep at night. A night dive is a shallow dive as a rule. Do not get too much engaged in the activity. Always keep shallow.
If you are diving for the first time take an experienced diver with you. Do not dive alone at night, never. Better to dive in the area that is more or less familiar to you. This has two advantages. You’ll feel more comfortable and you’ll see how the same place becomes a completely different thing at night.
Check the equipment fully before diving and take several dive lights with you. You just can’t do without them, especially if there is no moon that night. Get a primary and a secondary light with you. You never know what may happen, so it’ll be safer to have at least two dive lights with you. If you are a professional diver and it’s not your first night dive, it’ll be great to turn off the light for some time and enjoy the darkness of the underwater world.
You’ll be a very fortunate diver, if it happens to be bright moonlight the night you are diving. In this case you should switch off your light for at least several minutes and see how beautiful the reflection of the moon is in the waters.
Do not hurry while diving at night. As I’ve mentioned there’s a great deal to enjoy during a night dive, so take it slow. With the help of your flashlight you’ll certainly notice that the coral is even more colorful than it is during the day.
Before entering the water elaborate signals among the group members to better understand each other in the silence and darkness of the underwater. Be very careful and attentive towards your diver-buddies. Do not separate from each other. Keep close to one another. Besides, take care not to aim your lantern light directly to someone’s eyes. It’ll strongly bother your buddy and blind him for a short while.
Now two words concerning descending into the water and ascending back to the surface. While descending at night keep very close to your buddy or buddies, if you are diving with a group. Most dive masters would advise you to descend in vertical position. You’ll easily avoid obstacles in this way. Keep your flashlight brightly switched on and aimed downwards to see where you are diving. Be careful not to damage the coral.
The same I can say about ascending. Keep close to one another and keep your light upwards.
Before wishing you an interesting and enjoyable night dive I want to add several more things concerning your physical position. If you feel that something is wrong about you, sickness, tenseness or unassertiveness do not dive. No matter whether you have a very experienced and reliable comrade you shouldn’t dive.
I’d also advise you to pass a medical check-up before a night dive. Without hesitating I can say that you need to be in a perfect state to be allowed to go on a night dive.
Today there are numerous scuba diving services that organize night dives. They have night diving courses for divers of any degree. However, if you are a starter I’d not advise you to dive at night. It may scare you. Besides, night dive demands more carefulness, attention and, why not, experience of a scuba diver.
I see you have already made up your mind to have a night dive in your favorite area. Is your equipment in a good position? Do you feel comfortable in it? You haven’t forgotten about several lights, have you? Are your buddies reliable? Do you feel well? Then why are you still reading this? Hurry up for a real adventure!