DIVING SPECIALTIES (1)
The marine biodiversity hold a plethora of species while diving offers a plethora of different activities which are called diving specialties.
Most of the diving specialties require some specific training. Check out our guide in the dive training courses section.
To simplify we can range the specialties in two main categories: shore diving and boat diving where one type is diving from a dive boat and the other is diving from the shore.
Whether you are interested in shore or boat diving, below is a selection of some exciting diving specialties:
FLUORESCENT NIGHT DIVING
To view biofluorescence, fluo divers and snorkelers equip themselves with blue-light torches and barrier filters for their masks (and cameras, if they are doing photography). The barrier filter's function is to block the blue light that is reflected back to the observer from the organisms on which the light is shining. All that would be visible without the barrier filter is a very bright blue light, but the filter is designed to cut off all or most of the wavelengths in the blue part of the spectrum. The intensity of the emission light from the organism is very dim — so dim, in fact, that it is completely overwhelmed by the blue light; but if you block the blue, all you will see are the emission colors.
Photography of underwater fluorescence
We call Altitude Diving when the surface is 300 meters or more above sea level.
Lake Diving is generally practiced in altitude. Altitude diving requires specific knowledge, as the dive tables we use in the sea need some corrections.
In a lake, the depth and the time will vary from a similar dive profile at sea level. We have to consider that altitude diving will be in fresh water so the water temperature will be far from 30 degrees!
In doing altitude diving, the risk for a decompression sickness is higher. Indeed the atmospheric pressure is lower in altitude, hence, when surfacing, you will be exposed to a greater reduction in pressure.
Scuba diving in high mountains lake Austria.
Night Diving is just the discovery of a new world! A colorful world of alliens full of stars. You will feel like weightlessness in the space! Indeed with your light you will be able to spot the colors that is not visible during the day.
And if you turn off your light, you will see the fluorescent planctons. At night, you will be able to spot some marine fauna species hunting and other sleeping.
Its just an amazing experience who require some specific skills and dive gear (torches) but a confident certified beginer will have no issue with night diving.
Photography by Myriam Byrd, Bali, Indonesia
Cave Diving is gorgeous. A nice place to practice cave diving would be in the Cenotes in Mexico.
Cave diving can be very challenging and require specific gear (lights, guide line...), training and safety rules.
Cave diving is considered as recreational diving as long as we stay in the "light zone" and not deeper than 30 meters.
Cave diving is considered as technical diving in the case of a deeper penetration.
Photography by Philippe L'Homel: Les cenotes, Mexico
By definition for recreational diving, a deep dive is a dive below 18 meters. Generally a recreational diver will call a deep dive when the depth exceed 30 meters because ascending from 30 meters needs a mandatory decompression safety stop.
A technical diver will call a deep dive when the depth exceed 60 meters because from this depth is highly recommended to use other air blends than normal air.
See our page <a href="/divers-guide/types-of-diving/technical-diving/">technical diving</a> to get more informations.
We practice deep diving just for fun or to spot specific marine life or wrecks.
Photography by Philippe L'Homel, Malaysia