

Diving beyond recreational limits requires precise planning and management of decompression obligations. This course teaches the skills needed to safely perform dives up to 40 meters using multiple cylinders, including bottom and decompression gases. You’ll gain confidence in planning, executing, and analysing decompression dives under expert supervision.
Sessions begin at the Gosforth centre with detailed instruction on decompression theory, gas planning, and multi-cylinder use. Instructors explain the physiological effects of deeper dives and guide you through the planning process to manage nitrogen absorption and decompression safely.
Confined water dives provide hands-on experience with gas switching, cylinder management, and controlled ascents. Open water dives at local sites such as Capernwray, Ellerton, or Beadnell Bay allow practical application of decompression procedures. Each dive is closely supervised, with feedback provided on technique, safety, and decision-making under real conditions.
Theory and briefing sessions are held at the Gosforth centre. Confined water practice is conducted at the Elsdon Avenue pool in Seaton Delaval, Whitley Bay. Open water training occurs at selected local sites suitable for deep diving and multi-cylinder exercises.
These locations are chosen for accessibility and safety, providing controlled conditions to practice decompression procedures. Instructors ensure divers are confident before applying the skills independently in open water.
Divers must hold Deep, Nitrox, Sidemount or Twinset certifications and have logged a minimum of 20 hours of diving. Familiarity with multi-cylinder setups and advanced dive planning is essential.
Participants should be physically fit and have experience in buoyancy control, regulator management, and safe diving practices. Instructors provide step-by-step guidance to ensure all divers understand the theory and practical aspects before attempting open water decompression dives.
Instructors have extensive experience in technical and decompression diving, providing personalised guidance in small groups. Training focuses on practical application, ensuring divers gain competence and confidence in handling complex dives.
Facilities include both confined and open water environments, allowing divers to practise procedures safely before progressing to full-depth dives. Emphasis on safety, planning, and correct gas management ensures divers leave with skills applicable to both recreational and technical diving.
We partner with Rewilding Britain to help protect our natural spaces for future adventures.
All centres are vetted for safety and quality. Your adventure is in good hands with adventuro.