The SSI Extended Range Sidemount program is an advanced technical diving course designed to teach you how to carry and manage multiple sidemount cylinders (including stage/decompression bottles), aligning with Extended Range (XR) standards.
This program is aimed at divers who want to confidently transition from twin‑set or recreational sidemount to technical sidemount diving, also those aiming to dive in overhead environments (caves, wrecks) or conduct decompression dives using a sidemount setup