SDI Solo Diver
Develop the self-reliance, planning, gas management, and emergency skills required to dive safely and independently
Duration
1 day, 2 dives
Max Depth
Within recreational no-decompression limits
Level
Advanced Recreational Speciality
Next Step
SDI Sidemount Diver / TDI Intro to Tech
Overview
The SDI Solo Diver speciality is designed to train experienced divers in the benefits, hazards, and proper procedures associated with diving independently.
While buddy diving remains the standard approach for recreational diving, there are situations where divers may become effectively self-reliant. This course develops the skills, mindset, and equipment configuration required to manage those situations safely.
Training focuses on:
- self-reliance
- self-rescue
- emergency preparedness
- redundant gas systems
- dive planning
- gas management
- situational awareness
- risk assessment
Upon successful completion, graduates may engage in solo diving activities within the limits of their training and experience.
Course Facts
- Course name: SDI Solo Diver
- Level: Advanced Recreational Speciality
- Minimum prerequisites: Minimum age 21, SDI Advanced Diver (or equivalent), Proof of 100 logged dives
- Ratio: Maximum of 8 students per instructor (small groups recommended for quality training)
- Configuration: In addition to standard scuba equipment, divers must carry an independent redundant breathing system. Acceptable configurations include Pony cylinder, Twin cylinders with isolation manifold, H-valve system, Independent doubles, SpareAir™
- Depth / environment: Within recreational no-decompression limits, Swimming pools, Confined water environments, Open water training sites, Coastal and inland dive environments
- Format: Academic development + equipment configuration workshops + self-reliance drills + emergency procedures + two open water dives
- Duration: Approximately 1 day, 2 open water dives
What You’ll Learn
- Develop self-reliance, confidence, and independent decision-making underwater
- Learn effective gas management, dive planning, and emergency preparation procedures
- Configure redundant equipment systems for increased safety and reliability
- Practise self-rescue techniques and problem-solving without direct assistance
- Improve situational awareness, risk assessment, and personal diving discipline
Prerequisites
- Be at least 21 years old.
- Certified as SDI Advanced Diver (or equivalent).
- Proof of 100 logged dives.
- Be medically fit for diving.
FAQ
No.
This course is intended for experienced divers who already possess advanced diving skills and significant open water experience.
A minimum of 100 logged dives is required before enrolment.
The purpose of the course is not to encourage unnecessary solo diving. The objective is to develop divers who can safely manage themselves when effectively operating independently and who understand the responsibilities associated with self-reliant diving.
No.
SDI standards specifically require a completely independent redundant breathing system. A traditional octopus regulator does not meet the course requirements.
Most divers use either:
- a pony cylinder system
- independent doubles
- twin cylinders with isolation manifold
The configuration should provide a completely independent breathing supply capable of supporting an emergency ascent.
Solo diving requires strong situational awareness, buoyancy control, gas management, navigation skills, and sound judgement. The prerequisite experience helps ensure candidates already possess a high level of diving competency before beginning self-reliance training.
Ready to Become a More Self-Reliant Diver?
Whether you regularly dive with a buddy or simply want to improve your personal capability underwater, the SDI Solo Diver course develops the planning, awareness, and emergency-management skills that every advanced diver should possess.
Go Pro with the SDI Instructor Development Course (IDC)
Expand your diving knowledge through internationally recognised SDI training programmes delivered by experienced course directors and instructor trainers at N9BO℠. Build confidence, aquatic awareness, and practical skills that support lifelong enjoyment of underwater activities.
