Cave II Diver Training
NAUI Cave II Diver is an advanced technical cave course for divers ready to move beyond limited-penetration, simple-navigation cave dives. The official NAUI page states that the course covers longer penetration cave dives with staged cylinders, complex navigation, depths not exceeding 40 meters or 130 feet, and decompression dives using gas mixes up to 100% oxygen. It is a significant step in planning, logistics, navigation, and emergency preparedness inside an overhead environment.
This course is for certified Cave I or Mine I level divers with substantial overhead experience. NAUI lists Cave Diver Level I, Mine Diver Level I, or equivalent as the prerequisite, requires at least 100 logged dives with at least 20 logged overhead dives after certification, and sets the minimum age at 18. Students should already have disciplined line work, stable buoyancy and trim, strong gas planning habits, and comfort with cave emergency drills.
Training normally includes academic work, staged-cylinder procedures, decompression planning, complex navigation, and cave dives that demand careful team communication. In High Springs, Florida, Cave II Diver fits divers preparing for more serious cave objectives while staying within formal training limits. The expected outcome is a diver who can plan and execute more complex cave dives with better navigation discipline, decompression awareness, and staged-gas management.
