Anglais de la plongée sous-marine
Tonight we are going to talk about scuba diving, Martinique, and lots of fun things.
Vincent will introduce himself. Vincent is the creator of the scuba diving
school Acquadomia.com They specialize in accelerated training for all levels from beginners to instructors. Training takes place in Marseille’s Calanques National Park, and in Martinique, a part of the French Caribbean, during winter.
- Diving Basics Review
Let's think about some of the basic things when we go scuba diving: a mask, snorkel, which goes in your mouth and allows you to breathe, fins which are very useful
for swimming and seeing people underwater. Next are tanks. Scuba tanks allow us to breathe underwater. Gloves and wetsuits are excellent for keeping us warm while diving in colder bodies of water. We also have a buoyancy compensator device (bcd), or establishing jacket, that can be filled with air. The bcd has many uses: it can be employed to help a diver remain horizontal or add more levity or weight, depending if a diver is excessively sinking or floating.
There are two classifications of dives: boat and beach. A beach dive is when divers leave from the beach. A boat dive is if divers are using a boat and includes a deck and ladder. If the boat is floating with the current we can call it a drift dive.
- Carribean Sea & Martinique
Let's think geographically about the Caribbean Sea. We have the Atlantic Ocean
which separates Europe from North America, Central America and South America. Then we have the Caribbean Sea. In the Caribbean, there are many islands that are territories for example: Dutch islands, British Virgin Islands, American Virgin Islands etc. We have Guadalupe or Martinique which are French islands. The travel journey is around eight hours however the time difference between Martinique and France is five hours in the summer and six during winter.
Martinique is a volcanic island. Its highest point is 1397 meters. Saint Pierre was the principal town in Martinique until 1902 when it was destroyed by a volcanic eruption. The eruption was so strong Saint Pierre was ruined in less than two minutes and killed 30, 000 people. Most of the bay sunk which allows scuba divers to do wreck dives and see the beautiful remains underwater. The water is around 28 degrees Celsius which means drivers don’t need to wear thick wetsuits. However it is still important to wear something to protect your skin from coral and sunlight from the water's surface.
- SCUBA DIVING TERMS
Your dive card is the document you need to provide when visiting a scuba diving center.
This card shows that you are a certified diver. It can also be called an ¨open water certification¨ or ¨open water card.¨ If you are not certified, it’s possible to gain
certification during a vacation or you may want to start in a pool. After that you may purchase the basic equipment we discussed earlier. In France we use other terms, so the first level is called first level.
- First Dive + Scuba Diving History
You're going to go on your dive right so we're going to to talk about some of the experiences of our first dive concerning the change we see in scuba diving and a little bit of history . Underwater archaeology or underwater exploration of
historical findings was a tremendous new field that was opening up because of scuba diving. We could explore the past in a way we could not before. Commandant Cousteau was one of the first experiences scuba diving. The most common dive is a boat dive. We travel with a group and a divemaster to a specific site. Remember, if we leave from the beach that is a beach dive. In Martinique it is necessary to have a specific certification for wreck dives because divers have to be careful of oxygen consumption and the proper fin technique to not get lost. Improper fin technique can create sediment clouds which obstruct one's ability to see and could result in getting lost while exploring sites..
When visiting Martinique with Aquadomia, each client has accommodations and outlined appointments at the dive center. Divers have a choice between boat dives or beach dives.
- Life Underwater vs Life on Land
Temperatures vary throughout the sea. Currents contribute to discrepancies in different segments. When there is an area of warm water at the surface it creates currents. As for waves, they are created by wind. When the waves travel long distances, for instance from the Atlantic ocean to the Caribbean Sea it will create larger waves. We, as divers, have to be as careful as waves can make it difficult to get in and out of the water. This could require us to remove our fins. The difference in temperature can also result in
Heat loss. This is another reason why wetsuits are important as once we’re colder, we burn more calories and requires more nutrition to refuel after.
Also, the color spectrum is absorbed unequally underwater. This means that colors like red are distinguishable only in shallow water while blue, if hit with direct light, can appear clear. The clarity of water also varies depending on its location. That means the clarity may be higher in some places than others. Sound travels 800 times faster underwater. This means our sensory experience is completely different from on land.
Learn to dive : https://www.aquadomia.com/en/produit/plongee-marseille-formation-niveau-1-ou-open-water/