- Dive a Familiar Site
If this is your first time scuba diving at night, try and go to a site you are familiar with. In the Islands, many dive operators will do a night dive at a dive site that they went to during the day.
If you are thinking of doing the night dive, sign up to do a dive at the night dive site during the day. This way you will have some idea of what the area is like and may feel less apprehensive.
- Keep it Shallow
A night dive is typically a shallow dive in the Island. I would say 60 feet is probably max with 30-40 feet more the norm. Jersey Shore night diving will be a little deeper.
- Get Some Light
You obviously need some dive lights when you are doing a night dive. It's best to have a primary light and a backup light in case the first light fails. The secondary light can be small and could fit into your pocket.

You don't need the biggest and brightest light you can find. In fact, it is fun, once you get accustomed to diving at night, to turn your light off and let your eyes adjust to the dark. You'll be amazed at what you can see. Of course, it is up to you and get the light you would feel comfortable with while diving at night.
If you don't want to turn your light off underwater (I've never had a problem turning it back on but you never know) you can always face it into your BC so you get the same effect.
Also attach a glow-stick, battery operated light or something similar to your tank. This makes it easier to spot someone underwater. One dive group may have one color, another group a different color or the divemaster will have a different color so it is easier to tell who is who underwater.
You will want some method of attaching that dive light to you. That way if you let go, it won't sink to the bottom, never to be seen again. A lanyard or stretchy cord (or whatever you are comfortable with) work fine.
-
Take it Slow
There is a lot to see at night. You will see a whole different world underneath at night than during a day. Take your time and look in those nooks and crannies.
The reef also looks brilliant and colorful in the beam of your light. Much different than during the day when you are diving deeper and the colors are absorbed. In New Jersey, look for the lobsters!
- Get Familiar With the Hand Signals
When you are night scuba diving, you need to discuss the hand signals before you begin your dive. Since it is dark down there, your buddy won't be able to see your hands.
If you are on a dive boat, the divemaster will probably tell you what signals to use. If they don't, just ask. There is nothing wrong with that.

A typical way to use hand signals is to shine your light on your hand so your buddy can see them. Another common night diving signal is to move your dive light in a circle to signify "OK." Moving it up and down or back and forth can signify yes or no.
Whatever you choose to use, just make sure you clarify before you begin the dive.
- Watch Where You Aim That Light
Be aware of where you aim your dive light. If you put the full force of that light beam into somebody's eyes, you can momentarily blind them. It will take a little while for that diver to adjust his night vision again. So be careful.
- Mark Night Diving Entry/Exit Points
If you are doing night scuba diving off a boat, the boat should have a flashing strobe light attached to it so it is easy to find. As you are ascending, make sure you are looking up and know where the boat is so you don't bang your head.

If you are doing a shore dive, you should also know how to mark the night diving entry/exit point. The most common way is to place lights on the shoreline. You should use more than one to make it easier to spot. You could have 2 close together and 2 close together but further down the shoreline. Or whatever configuration works for you. It also doesn't hurt to have someone on the shore to make sure the lights don't go out (or somebody doesn't swipe them).
Keep an Eye on Your Buddy
If you happen to lose sight of your buddy, one way to find him would be to shut off your light and look for the glow of his light. He shouldn't be that far from you and you should be able to see his light.
Another, and pretty much opposite way, is to turn a full circle while pointing you light outward. You might be able to see your buddy in the beam or he might notice the movement (if he hasn't noticed you are gone yet).
If the boat has to come pick you up after you have surfaced, shine the light on yourself so the captain can see you.
If you haven't done night scuba diving, you should really give it a try. It's a different experience and isn't difficult. You just have to get used to it, like all new things. You'll see lots of new creatures and habits to add to your memories. So give it a try. I hope these night scuba diving tips will help make your first night dive a more comfortable experience.
Taking a Night Diving Course from a Certified PADI Instructor is the best way to make your first night dive a pleasurable, comfortable dive.