Halcyon
IANTD Deep Diver training is designed for divers who want a more responsible, planned approach to dives beyond ordinary shallow profiles. The official IANTD page describes the program as training in the skills, performance, theory, and planning of deep dives, with the course remaining within commonly practiced sport-diving depth limits. The course focus is practical: gas awareness, descent and ascent discipline, narcosis awareness, buoyancy control at depth, and making decisions before small problems become large ones.
This is not a first certification course. IANTD lists Advanced Open Water Diver or equivalent as the prerequisite, along with minimum age and logged dive requirements. It suits divers who are already comfortable in open water and want structured coaching before attempting deeper recreational dives. Students should expect the instructor to look closely at trim, situational awareness, buddy procedures, and whether their existing habits are strong enough for deeper profiles.
Training generally includes academic sessions, confined-water skill development, and open-water dives. In High Springs, Florida, the course can help divers build a clearer framework for deep planning before moving toward recreational trimix, advanced nitrox, or other technical pathways. The outcome is not just reaching a number on a depth gauge; it is becoming a calmer, more deliberate diver when depth adds task loading.