© Nottingham Adventure Centre Ltd 2011 site home | about us | contact us | calendar | location maps To book call the Dive Centre on 0115 929 0707  or reserve your place on-line today. If you dive within the light zone of a cave, the area near the cave entrance where natural light is always visibly, you're cavern diving. If you want to explore secrets hidden in caverns around the world you'll need your PADI Cavern Diver certification. What do I need to start? PADI Advanced Open Water Diver certification or proof of certification beyond entry level with a minimum of 20 logged dives. These should include experience of night diving and deep diving (beyond 18 metres). Minimum age: 18 years old What will I do? During your first open water dive you'll practice line handling, reel use and emergency procedures without entering a cavern. But, for your next three dives, you're headed into the cavern, staying within the light zone and 40 metres/130 feet total distance of the surface. During courses in Malta we also complete an orientation and check out dive. You'll also cover the following: Planning, organisation, techniques, problems and hazards of cavern diving. Special equipment use, such as lights, guidelines, reels and redundant breathing systems. Proper body position, buoyancy control, air management and emergency procedures. Cavern diving hazards such as silting, line problems, disorientation and emergencies. How long will it take? Recommended Course Hours: 24, minimum Open Water Training: four dives over two days. We usually conduct Cavern Courses during our group trips to Malta and Gozo. Alternative locations may be available subject to suitability.