Diver Training

Tec 40 TrainingPADI Tec 40 is the first major step in the PADI TecRec open-circuit decompression pathway. The official PADI page describes it as bridging recreational and technical diving, introducing limited decompression, gas planning, and tec...

Course OverviewTDI Cavern Discovery is a guided introduction to cavern diving for recreational divers who want to experience the overhead environment under direct instructor supervision. The official TDI standards describe it as developing the minimum...

Semi-Closed Rebreather TrainingIANTD Semi-Closed Rebreather Diver training introduces competent divers to the safer use and technology of recreational SCR diving. The IANTD Spain individual page describes the program as no-decompression SCR training...

Move from Cavern into CaveIANTD Introductory Cave Diver is the next overhead step after a diver has learned light-zone cavern or limited mine procedures. The official IANTD page describes the Introductory Cave or Mine Diver program as an introduction to...

Helitrox Diver TrainingNAUI Helitrox Diver is a technical course for divers learning to use helium-enriched EANx breathing mixtures for staged-decompression dives. The official NAUI page states that the course covers helium-enriched EANx mixes with 21%...

Underwater Imaging TrainingNAUI Underwater Digital Imaging Diver is a specialty course for certified divers who want to take better underwater photos or video while keeping the dive itself controlled. The official NAUI page describes the course as...

Support Underwater Science ProjectsGUE Scientific Diver is designed for divers who want their in-water skills to support real research and project work. GUE explains that its trained divers work with scientific centers where archaeologists, biologists,...

Master Scuba Diver RatingPADI Master Scuba Diver is a recognition rating for experienced recreational divers who have built a broad foundation through continuing education. The official PADI page describes it as the highest recreational diver rating in...

Course OverviewPADI Tec CCR Refresher is for certified Tec CCR divers who have not been diving their Type T CCR often enough to feel fully current. PADI describes frequent CCR diving as the best way to maintain skills and comfort, but the refresher gives...

Extend Cave Diving CapabilityGUE Cave Diver 2 is the natural progression for active Cave 1 divers who want to expand their range and competence in more complex cave environments. GUE describes Cave 2 as the logical next step once divers have gained...

Cavern Diver TrainingPADI Cavern Diver introduces certified divers to overhead-environment procedures while staying within cavern limits. The official PADI page describes learning to use guidelines and reels, plan cavern dives, communicate, and handle...

Course OverviewTDI Cavern teaches certified divers the minimum knowledge and skills for diving in overhead environments while remaining within the limits of natural light. The official TDI page is clear that cavern training is not cave diving training...

Rebreather Experience OverviewIANTD Rebreather Experience is an introductory program for divers who want to understand what rebreather diving feels like before committing to a full unit-specific course. The IANTD Spain individual listing describes the...

Cave Surveying TrainingNSS-CDS Cave Surveying teaches certified cave divers the fundamentals of surveying underwater caves. The official NSS-CDS page describes the course as suitable for cave divers of all experience levels and gives its goals as...

Deep Diver TrainingNAUI Deep Diver is a specialty course for divers who want to plan and conduct deeper recreational dives while minimizing risk. The official NAUI page defines deep dives in this course as dives between 18 and 40 meters, or 60 and 130...