About the Course
The SSI Extended Range Nitrox program provides a thorough introduction to the concepts, techniques, and procedures required for decompression diving with nitrox. Designed as either a stand-alone program or a stepping-stone to become an SSI Extended Range Trimix diver, this enriched air diving program provides foundational skills that are the basis for all future technical programs. Using either a sidemount or twinset configuration, this program prepares you to plan and conduct limited decompression dives to a maximum depth of 40 meters. In addition, this advanced program will teach you the techniques and procedures for using breathing gases up to 100% oxygen for decompression.
Your Instructor
Pavlos Besis
From competitive swimming to the deep blue — Pavlos has always lived in the water. Between 1980 and 1996, he set six national records and was European Champion in Fin Swimming before discovering diving in 1997. Since then, thousands of dives have shaped his passion and experience beneath the surface.
With a strong background in technical and cave diving, Pavlos teaches with precision, discipline, and safety at the core of every course. A dedicated advocate of the DIR philosophy, he guides divers to explore the caves of the Aegean with confidence and control. For Pavlos, diving isn’t just a profession — it’s a way of life.