This 3-hour confined water session introduces divers to the core concepts and practical skills required to safely operate the Hollis Prism 2 CCR. Conducted in a controlled pool environment, the course focuses on system familiarization, pre-dive setup, loop management, buoyancy control, and foundational breathing techniques unique to closed circuit diving.

Students will practice basic CCR procedures including unit assembly, checks, bailout awareness, and simple skill drills designed to build comfort and confidence on the loop. This session serves as an ideal entry point for divers preparing for formal CCR certification or seeking hands-on exposure to rebreather diving fundamentals in a low-stress environment.