This NAUI course, powered by DAN (Divers Alert Network), equips participants with essential skills to respond to life?threatening injuries or illnesses until professional medical care is available. Training includes adult, child, and infant CPR; AED use; bleeding control; choking response; shock management; secondary assessments; splinting; and response to common medical emergencies. The course also covers emergency oxygen administration—the preferred first aid for scuba diving injuries—emphasizing early intervention, recognition of decompression illness (DCI), and appropriate response procedures. While designed for diving emergencies, these skills are broadly applicable to other watersports and outdoor activities.