As a Nitrox diver, you can increase your bottom times and safety margins, plus shorten your surface intervals - so you can spend more time diving and less time waiting! In this program, you will learn new skills and increase your diving knowledge whilst learning how to safely plan and dive with enriched air mixtures of up to 40% oxygen. Upon completion, you will earn an SSI Enriched Air Nitrox 40% certification. Course dates will be agreed together, theories and dives in 2026!

In the SSI Science of Diving course, you will gain a complete understanding of the underwater world and its effects on the human body. Completing this course is a prerequisite for most SSI professional courses as well as some Extended Range courses and is an excellent way to expand your diving knowledge. Available online, you can earn your SSI Science of Diving certification from home and prepare to start your professional diving career. Upon completion, you will already be halfway to the coveted SSI Divemaster rating and earn the SSI Science of Diving certification.

In the SSI Advanced Open Water Diver course, you can try the Deep Diving and Navigation courses as well as three other dives in the special course. The course is a great way to experience what SSI advanced courses are all about and how valuable it can be in your diving adventures. During the Advanced Open Water Diver course, you will experience five different specializations as you complete one open water dive per specialty after a comprehensive orientation with your SSI instructor. You can complete any special training at any time in the future and have your Advanced Open Water Diver training credited to them. The course gives you the classification to dive to a depth of 30m. Course dates will be agreed together, theories and dives in 2026!

The Dive Guide course is the first step on an exciting journey to becoming a dive training professional. Learn how to lead certified divers safely in a variety of environments and conditions. By keeping dive briefs, conducting site assessments and leading dives, you will become a confident dive guide in no time. Start your diving career by working as a professional dive guide or work towards a Divemaster qualification

The Assistant Instructor rating is the next step on the diving instructor path after becoming a Divemaster. It allows you to gain valuable teaching experience, practice your initiations, teach lessons and provide on-water training. If you want to progress your career as a diving professional, you can complete the Instructor Course, pass the Instructor Evaluation exam and become an Open Water Diving Instructor.

Drysuit diving opens up a world of opportunities, including diving remote Arctic destinations and exploring cold-water dive sites teeming with life. Dry suit diving also keeps you warm on multi-dive days when you do not want to spend your time getting in and out of a cold wetsuit. The SSI Dry Suit Diving specialty program is the best way to become a dry suit diver and teaches you all the knowledge and techniques you need to dive safely and comfortably in a dry suit. You will learn how to use specialized equipment, like dry suits and BCs, the benefits of dry suits and how to deal with dry suit emergencies – which are unique to this type of diving. Upon completion, you will earn the SSI Dry Suit Diving specialty certification.

In the SSI Marine Ecology Specialty course, you will learn how marine organisms interact with each other and their environment. You will learn how energy flows through communities and the interconnections between different marine ecosystems. Your new knowledge will make you appreciate the marine life you dive with even more! Start online today and earn your SSI Marine Ecology Specialty certification.

Become a diving instructor and live your passion. To participate in the SSI Instructor Training Course (ITC), you must be a certified divemaster or equivalent. This comprehensive course is part of SSI's two-step training methodology. It starts with a combination of instructor courses supported by immersive digital learning. After completing the ITC, you will take an Instructor Evaluation (IE) to become an SSI Open Water Instructor. As a certified instructor, you will be able to independently instruct the core SSI courses Open Water Diver, Advanced Open Water Diver, Enriched Air Nitrox, Diver Stress & Rescue and Dive Guide. Need more time or want to gain practical experience before becoming a fully fledged instructor? You can complete the Assistant Instructor component as a separate step. This allows you to assist on the right courses, gain valuable experience and then complete the instructor assessment at your own pace. The possibilities are endless - start your instructor career now!