Scuba Diving @ Sodwana Bay
Scuba Diving Terms and Phrases: A Advanced Open Water: Follow up certification after Open-Water Diver; allows for deeper Air: A gas mixture containing 21percent oxygen, 78 percent nitrogen, and 1 percent other gasses (mainly argon); compressed air is held in a tank for scuba diving. Apnea: Breath-holding; apnea diving is a type of freediving, but in scuba diving you should never hold your breath. Ascent: Rising to the surface when diving; typically at the end of a dive. Ascent Rate: How quickly a diver returns to the surface. You should never ascend faster than your bubbles as a safety precaution. Scuba Diving Terms and Phrases: B Backroll: Entering the water from the side of the boat, back first. BC/BCD: Buoyancy Compensator. This is the harness divers wear that hold the air tank and connects to the regulator. Bends/Bent: The pain a diver feels when suffering from Decompression Sickness (DCS). See DCS definition below. The bends often occur from ascending too quickly. Boat Dive: Scuba diving that requires a boat ride to the dive site. Bootie: Scuba gear divers wear with open-heel fins. Booties can range from thin (1 mm or less) to thick (7 mm) neoprene and protect your feet from the cold as well as sharp rocks and other hazardous things you could step on when shore diving. Bottom Time: The length of your dive. Buddy: The person you dive with; this is the person you discuss a dive plan with and you are both responsible for keeping each other safe. Buoyancy: (Positive, Negative, Neutral) Buoyancy refers to your position in the water. Things that sink are negatively buoyant; things that float are positively buoyant; scuba divers should be neutrally buoyant (floating in the middle). Scuba Diving Terms and Phrases: C C-Card: Proof of scuba certification that you receive after completing your training course. This is necessary to go diving without an instructor for open water divers and is proof of any secondary/specialty scuba training and certifications you have. Call: To “call a dive” means that you are choosing or being told to end the dive and return to the surface. Cave: A hollow place in the ground, typically of natural formation. Cave Diving: Entering a water-filled cave system either on scuba or freediving. Cave diving can extend thousands of feet into a cave system for people who are properly trained. Cavern: A semi-enclosed area (often a rock formation) where you can still see the entrance and Certified Diver: Someone who has completed scuba diving lessons through a training organization and is able to dive without an instructor. Certification Agency: An organization like PADI, NAUI or SSI that trains people to scuba dive. There are over 100 agencies that do this, but not all certifications are valid worldwide. Check-Out Dive: These are the dives completed outside of a pool (can be in a lake, ocean, spring, quarry, etc.) to prove that you’ve mastered a set of scuba skills and are necessary to complete scuba certification. Confined Water Dive: Dives conducted in a pool or other shallow, current-free underwater environment so that students can master training and skills in a safe, controlled environment before completing open-water check-out dives. Scuba Diving Terms and Phrases: D DAN: Divers Alert Network DCS/Decompression Sickness: When bubbles of gas (often nitrogen) get trapped inside of the body. There are varying levels of severity, and can be caused by swimming to the surface too quickly. Depth Gauge: A piece of scuba equipment that monitors how deep you are during your dive. Most dive computers serve as a replacement for depth gauges. Dedicated Dive Resort: Accommodations that focus on scuba diving experiences. They often have a dive shop onsite, and include diving in the booking fees. Dive Computer: A piece of scuba gear that monitors depth, bottom time and a ton of other information about each dive you complete. All dive computers are different, but they are an alternative to planning dives with dive tables. Dive Instructor: This person has gone through many trainings and certifications (open-water, advanced-open water, rescue diver, divemaster and more) so that they can teach others how to scuba dive. Dive Light: A flashlight designed for use underwater. Dive Operator: A store, boat or lcoation that will take you to go diving and often can certify you as well. Dive Table: Tool that helps determine how long you can safely stay underwater at different depths. Developed by the military to keep divers safe from decompression sickness Divemaster: A professional-level scuba diver who has logged at least 60 dives and who is trained to assist instructors on dive boats and during certification courses. DPV: Diver Propulsion Vehicle. A handheld and operated scooter or motor device that allows divers to move faster underwater. Drift Dive: Diving in a current, often from a boat. Once the dive is complete, the boat picks you up at the surface. Dry Bag: A bag to keep any items dry that aren’t waterproof. Drysuit: A type of exposure suit that keeps you dry while diving; used in cold-water dive conditions. Scuba Diving Terms and Phrases: E EAN: Enriched Air Nitrox. This is a form of mixed-gas scuba diving. Entry: Getting into the water either from shore, boat, etc. Equalize/Equalization: Putting air into an open area to compensate for the change in pressure. (Most commonly ear equalization for scuba divers.) Exposure Suit: A garment worn to keep divers warm and help protect them from cuts, scrapes and other elements. Scuba Diving Terms and Phrases: F Fins: The scuba gear that you wear on your feet to help you swim faster/with less effort. First Stage: Part of a scuba regulator; this attaches to the air tank. Freediving: Diving deep or staying underwater for extended periods of time without an air tank. Frog Kick: A technique for kicking your fins underwater. The bottoms of your feet move at each other like you’re sitting Indian style to propel you forward. This is a helpful technique to avoid kicking up sand. FSW: Feet of Sea Water Full-Foot Fin: A fin that covers your entire foot and most often doesn’t require you to wear a bootie. Scuba Diving Terms and Phrases: G, H, I, J, K, L Giant Stride: A method of getting in the water where you take a large step off…