Why do night diving? We all know that any scene in our environment has a different face with the arrival of night. No matter how many times we have seen it during the day or how well-known it may be, darkness allows us to appreciate shapes and colors from very different perspectives than daytime. The sea is no exception, and as well-known as it is an immersion point, if you have not visited it at night, you have not seen it in all its dimensions.

In night diving, darkness allows you to appreciate the colors of the environment as they really are

Oddly enough, the main protagonist of night diving is color. During the day, the focus that illuminates us is the sun, and its white light loses wavelengths (colors) with depth, so we are generally immersed in a blue or green monochrome world. In this chromatic framework, even using the light of a lantern, the colors appear distorted, and we never appreciate their real nature.

However, in night diving, darkness is the perfect companion for your flashlight, and always (the point where you point) the corals, the fish, and all life around will be a display of bright reds, oranges, pinks, and yellows.

It is worth it just to observe the phenomenon of bioluminescence

If you marveled at those science fiction scenes and wanted to visit them, night diving is possible. Night diving introduces you to a world that is completely inaccessible by day, with contrasts that inspire movies: a completely black background and the glow of bioluminescence. In the Tabarca area, the phenomenon can be observed thanks to certain components of plankton, such as Noctiluca, a photoluminescent single-celled organism that emits a bluish light when stirring the water.

Instructions for use: Turn off the light of the flashlight and be immersed in darkness, wave your hand in front of the glasses and enjoy a phenomenon comparable to underwater, northern lights.

Night diving and moonlight

Diving at night with a full moon is one of the best combinations that a diver will ever see. The beauty of night diving is that as soon as it can plunge you into complete darkness, it can surround you with incredible games of contrasts and shadows when the rays of the moon and its polarized light cross the changing surface of the water. It’s amazing how good you can get to see when you turn off the flashlight and get your eyes used to the gloom of the night with a full moon. We suggest that you do the test and check the number of details that you can see without artificial light.

The sensations are incomparable.

And since they are incomparable, describing them here makes no sense. It is when you first decide to get on the boat at sunset, put on your gear, and launch into the unknown when you understand why you have to try night diving. The smile after a night dive will last you hours; it is the biggest side effect of this type of diving.

The main thing about this activity, to be able to fully enjoy it, is to know at all times that you are doing it safely. We are not able to take advantage of experiences if we feel in danger. The characteristics of a night dive differ in many aspects from the daytime ones, and it is necessary to know the techniques and procedures to unwind in the underwater night.

Diving is a sport that captivates you due to the beauty of the deep sea. Diving in the company of a loggerhead turtle, a dolphin or a shark, in addition to observing multicolored fish, coral reefs, and other species, are just some of the wonders that this practice offers you.

Many organisms remain asleep and hidden during the day, but at night it is possible to appreciate a different scene; In addition, practicing fluorescence or flurodive diving is unmatched.

What is fluorescence?

Fluorescence should not the same as bioluminescence, in which light is produced by living organisms. Nor should it be confused with phosphorescence, the brilliance of which comes from the energy absorbed and stored and then sent back, after a certain period of time has passed, like the face of some watches.

It is the ability to absorb light at a certain wavelength, in a range of 450nm to 480nm (close to UV light and in the spectrum of blue light), and then re-emit it over a longer length.

The number of organisms that emit fluorescence is vast. Research like that of molecular biologist Jörg Wiedenmann of the University of Southampton suggests that corals of different depths can change the colors they emit because they use fluorescent proteins for different purposes either as a sunscreen in surface waters, which gives them a green coloration or for photosynthesis in deeper areas, where sunlight is scarce, emitting reddish, yellow, and orange colors.

Three great attractions that night diving has

  • The colors revealed are similar to James Cameron’s Avatar, as well as the blacklight disco parties of the 1970s.
  • Night diving is like being in space as you enter total darkness with only a small light source.
  • In addition to organisms that emit fluorescence, during the night, it is possible to admire various species that go out to hunt; such is the case of the dying, eel fish, known as moray eels, or the Caribbean reef octopus.

What is needed?

    • Blue light lamp (not UV, not blacklight) from 450 to 480 nm, like the Sola NightSea Blue, with Bigblue filters (for rent in various diving centers).
    • Yellow filter for diving mask and camera.
    • Good buoyancy to avoid damaging corals and maintain safety when diving.
  • Long wetsuit, not mandatory (can also be rented).