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Knots, knots and more knots.
Every diver must know how to attach a bolt snap to the dive equipment and how to tie a bungee cord to the harness. These knots must be secure but easy to cut with a knife or scissors.
Our terrestrial instinct and the need for training
Why do we need to train ourselves to go on diving? Why are there so many specialties in diving? Why should we go back to training whenever we face underwater environments different from what we use to enjoy?
Hand signs, our language underwater.
In order to really work as a team underwater, we need to have hand signs to communicate. The most important about the hand signs is that they must be simple, short and if it's possible that it can be executed with only one hand.
Sport diver or recreational diver?
From the perspective of the diver certification agencies there is no difference between a sport diver or a recreational diver. But we can make a difference in styles based in how the diver perceives the diving activity. The same difference of styles we can find in other sports and hobbies.
Out of gas situation, could that happen to us?
Divers with poor training and bad practices often run out of gas while diving. Well-trained divers have a high awareness of their consumption under water and are always checking the gauge.
Diving as a team, beyond diving in a group.
Many times we take for granted that the fact of diving with more people is the same as diving as a team. Are we really diving as a team? are we working as a team while we dive?
Masks, our window to the other world.
The diving mask is a very important element our dive gear and often is not given the importance it deserves. Some water inside the mask does not present a hazard to the diver, but can make a good dive becomes a nuisance.
Fins: Heavy and others not so much.
There are two types of materials used to manufacture fins: rubber and plastic. The main difference is that rubber is negative underwater and plastic have a buoyancy near to neutral underwater.
Bolt Snaps: Types, uses and recomendations.
A bolt snap is a device that allows us to attach (clip off) some scuba gear to our diving harness. There are different materials which the bolt snap can be manufacture: stainless steel, brass or plastic. Of the three materials mentioned the most reliable is stainless steel.