TDI Cavern Diver Course

As the first in a series of overhead courses, the TDI Cavern Course takes a serious look at the skills needed to conduct safe and enjoyable cavern dives. Although the cavern course is conducted in the light zone you will still be in an overhead environment. Your TDI Cavern Instructor we cover topics and skills such as:

Prerequisites

• Minimum Age: 18 (15 with parental consent)
• Minimum Logged dives: 50
• Minimal Requirements: AOWD / Intro to Tec is an option. 
• Dry Suit Experience: Recommended

Gear Requirements:

• Backplate with a harness.
• Buoyancy Compensator Device (BCD): Wing size and shape should be appropriate for the cylinders used during training.
• Regulators: For a double tank setup, one first stage must provide a second stage on a 2.1-meter (7 feet) hose and inflation for the BCD. The other must provide a second stage on a hose not exceeding 60 cm, attached with a shock cord on the mouthpiece. It must also provide a pressure gauge on a hose not exceeding 60 cm, and inflation for a dry suit (where applicable).
• Primary light with a burn time of at least 2x the dive time. At least two backup lights with bolt snaps attached to the back for stowage on the system.
• One exposure suit appropriate for the training environment and water temperature. A dry suit is preferred.
• At least five line markers, of which at least four should be REM and at least one arrow.
• At least one knife as a line-cutting device.
• At least one low-volume mask as a backup.
• One pair of non-split, rigid fins.
• One underwater notepad.
• One spool of at least 30 meters of line per diver.
• One spool of at least 50 meters of line per diver as a backup.
• One primary reel of at least 120 meters of line per diver.
• Dive computer or bottom timer, as well as a backup computer or bottom timer, or a combination of both