XR Sidemount
DaivoonTec, Lanzarote
Perfect for divers looking to explore advanced environments or simply prefer the comfort and flexibility of sidemount, this course covers everything from gear setup to advanced problem-solving.
Increase your range: Learn to use a DPV
The Extended Range Sidemount course takes sidemount diving to a whole new level—focusing on redundancy, balance, and precision in a technical configuration.
You will learn to dive Sidemount with 3 or more cylinders while still maintaining perfect trim, bouyancy and cylinder trim/positioning.
Limitations of XR Sidemount:
- Technical Sidemount Configuration
- 3+ Cylinders
- Max 40m
- No deco

What You’ll Do in the SSI Extended Range Sidemount Course
Academics & Dive Planning
- Dive planning for multi-cylinder sidemount diving
- Cylinder labeling, balancing, and gas switching procedures
- Streamlining and trim techniques specific to sidemount
Confined Water / Skill Training
- Equipment assembly and sidemount-specific configuration
- Flow checks, gas sharing, and S-drills
- Cylinder removal and replacement (surface, underwater, and no-mount)
- Buoyancy, trim, and propulsion skills (flutter, frog, backwards kicks)
- Handling failures: mask, inflator, regulator, buoyancy system
Open Water Training Dives (4 dives)
- Controlled descents/ascents in full sidemount configuration
- Stage cylinder management and valve drills
- SAC rate checks and backup equipment handling
- SMB deployment and simulated emergency procedures
Final Debriefing & Exam
- Review of knowledge and skills
- Dive log debrief
- Final written exam to confirm understanding and readiness