A scuba diving course is required if you want to become a cavern diver. This course includes four scuba dives: the first is an outdoor practice dive, where you will learn the basic techniques of handling line and reel, avoiding silt-outs, and air management. Your instructor will show you how plan your dive, and keep your air and orientation under control. The course will prepare you to dive in caves.
Safety
Cave diving safety protocols follow the Rule of Threes. The Cave Diver should have three sources for light and at minimum two tanks. They should also separate their gas into three distinct sections in order to have enough to last the dive. If the dive team has experience in diving in caves, a more conservative gas management plan will be preferred. Cave divers must practice safe diving practices in order to avoid hazards from caves.
Equipment
Cave diving requires the use of specific equipment. It is essential to have two types of safety gear. One should be used for guideline running, while the other should keep the line tension high while the diver is in a cave. For cavern diving, each diver must have a safety rod with enough line for the distance to the cave's entrance. Many manufacturers will bundle the spools with guideline at the edge when you purchase a new reel. This makes them more likely to jam. To avoid a jam, you should cut off about 10 meters (30 ft) of line before use to reduce the risk of entanglement.
Maximum penetration
TDI offers a cavern course to scuba divers looking to dive in areas where it is not possible to reach the vertical. This includes overhangs and cavern diving. Although it is not necessary to take a cavern diving course, this course will give you the skills and knowledge to make the most of this environment. In this course, you will learn how to safely navigate the confined spaces that are often hidden from view.
Maximum depth
Cavern diving is subject to certain restrictions. Cavern diving requires that you never dive at night and that you are aware of your limits. Cavern diving requires more training than other types. You will need to be familiar with cave safety procedures and your limits if you are interested in diving in caverns. You should also have some cave diving experience before you try it. This will allow you to begin your journey into the wonderful world of cavern-diving!