You must take a scuba divers course if your goal is to become a cave diver. The course includes four dives. The first is an outdoor practice, in which you will learn how to handle line and reel, avoid silt-outs and manage air. Your instructor will also show you how to plan your dive and keep your orientation and air management under control. You will be able dive in caves, or other caves after completing the course.
Safety rules
Cave diving safety protocols should follow the Rule of Threes. A cave diver must have three sources of light and at least two tanks, one of which should be independent or multi-mounted. To ensure that they have enough gas for the dive, they must also split their gas into three parts. 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 specialized equipment. Two safety reels should be carried. One should be used as a guideline reel, and the other should be used during the dive. Each diver should have a safety reel that has enough line to reach the cave's entry and the longest permanent line. When purchasing a new reel, most manufacturers will pack the spools to the edge with guideline, which makes them more prone to jam. To prevent a jam, trim approximately 10 meters (30 ft.) of line before you use the reel. This will reduce the risk for entanglement.
Maximum penetration
TDI offers a cavern divers course. This course is for scuba divers who desire to dive in areas without direct vertical access. This includes diving into caverns and overhangs. 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. You will learn how safe to navigate narrow spaces that are often hidden from public view.
Maximum depth
Cavern diving has some limitations. You must never dive at night, and be aware of your limits. Cavern diving requires more advanced training that other types of diving. Cavern diving requires that you know your limits and learn basic cave safety procedures. Before diving in caverns, you will need to have had some experience. Then, you can begin a journey into the world of cavern diving!