From £ 235
Chertsey
From £ 210
Borehamwood, Hertfordshire
From £ 393
La Maddalena
From £ 345
Somerset and Dorset, United Kingdom
From £ 350
Surrey, East and West Sussex, United Kingdom
From Dhs 1150
The Palm Jumeirah, Dubai
From £ 345
Northumberland and Tyne and Wear, United Kingdom
From $ 346
Minahasa Regency, North Sulawesi
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The Deep Diver course focuses on safe planning and execution of dives beyond the standard recreational limit of 18 m / 60 ft, extending to a maximum of 40 m / 130 ft. The course includes theory sessions and four open water dives that progressively build your comfort and competence at depth.
The four dives are typically conducted over two days, and may include:
Throughout the course, your instructor will guide you in using appropriate equipment, such as redundant air sources, dive computers, and surface marker buoys (SMBs). You’ll also practise controlled ascents and safety stops, essential for avoiding decompression illness.
Although course details can vary slightly between PADI and SSI, the learning outcomes are broadly similar. Both organisations emphasise safety, planning, and personal responsibility. Check with your chosen centre for any additional requirements or local dive site specifics.
And if you're looking to book your course close to home or while travelling, adventuro lists hundreds of lessons, tours and gear rentals to get you started.
After earning your Deep Diver certification, you'll be qualified to plan and conduct dives to a maximum depth of 40 m / 130 ft with a buddy. This allows access to deeper wrecks, reef walls, and sites where unique marine species reside. You'll also be able to join guided deep dives offered by centres worldwide, many of which require proof of deep diving certification.
It’s also a prerequisite for several professional and technical diving courses. For instance, if you're working towards becoming a Divemaster or Rescue Diver, the Deep Diver certification often counts as one of the required specialties. It also lays a solid foundation for further training in areas like technical diving, nitrox, or wreck penetration.
Most importantly, it builds your confidence and capability to dive deeper safely, reinforcing critical planning skills and emergency awareness at depth.
Most Deep Diver courses are completed in two days and include four open water dives. Some centres may offer flexible scheduling, including split weekends or midweek sessions. The theory portion can often be completed online or in a classroom prior to the dives. Expect to spend 12–16 hours in total, depending on conditions and your learning pace.
The Deep Diver course from both PADI and SSI is a performance-based certification. You'll complete a series of deep dives (typically four) under the supervision of a qualified instructor. These dives focus on developing safe diving habits at depths beyond 18 metres, including proper descent procedures, gas management, buoyancy control at depth, and navigating in low-light environments. Your instructor will assess your ability to plan and execute deep dives safely, demonstrate awareness of nitrogen narcosis, and follow all safety stops. Most divers complete the course successfully within the standard training dives, but additional dives or theory sessions can be arranged if more practice is needed. Once certified, you'll be qualified to dive to 40 metres—the recreational limit for most agencies. You can browse and book Deep Diver courses at centres across the UK and beyond on adventuro.
Quick answers about this qualification. For anything else, use live chat or browse bookable activities below.
Find activitiesThe Deep Diver certification from PADI or SSI allows you to dive to a maximum depth of 40 metres (130 feet), which is the recreational diving limit for most training agencies. The course teaches essential skills for planning and executing deep dives safely, including gas management, dealing with nitrogen narcosis, and using dive computers effectively. It's a key step for divers looking to explore deeper wrecks, walls, or other dive sites that go beyond the 18-metre mark of basic Open Water certification.
The course typically includes four open water dives, which are usually completed over two days. Some centres may offer the course over a long weekend, while others might spread the dives out over multiple sessions. There's also a theory component, which can be completed online or in-person, depending on the training centre. Check individual course listings on adventuro for exact duration and schedule options.
To enrol in the Deep Diver course with either PADI or SSI, you must be at least 15 years old and hold an Advanced Open Water Diver certification (or equivalent). Some centres may accept divers with Open Water certification if they have completed a deep adventure dive or are completing it as part of the course. Always confirm the specific requirements with your chosen dive centre.
You'll learn how to plan and conduct dives between 18 and 40 metres safely. Key skills include calculating no-decompression limits, recognising signs of nitrogen narcosis, managing gas consumption, and performing controlled ascents with safety stops. You’ll also get experience navigating and maintaining neutral buoyancy in deeper and often darker conditions. These are essential for anyone looking to dive deeper with confidence.
Yes, most Deep Diver courses include a short knowledge review or written assessment to ensure you understand dive planning, gas management, and the risks of deep diving. The exam is not difficult if you’ve completed the reading or eLearning in advance. Your instructor will go over key concepts with you and help clarify anything you’re unsure about before the assessment.
In many cases, your standard scuba kit will be sufficient, but some additional equipment is strongly recommended. This includes a dive computer, redundant air source (such as an octopus), and a torch. Some divers also use a surface marker buoy (SMB) for safety. Your dive centre will advise on what’s required and may provide rental gear if needed. adventuro listings include equipment details for each course.
Yes, once earned, the Deep Diver certification from PADI or SSI is valid for life. However, if you haven’t dived in a while—especially at deeper depths—it’s smart to refresh your skills with a guided dive or refresher course. Many dive operators require proof of recent experience before allowing deep dives, especially below 30 metres.
It’s completely normal to feel apprehensive about diving deeper. That’s why the course is taught progressively, starting with shallower dives and working toward the 40-metre limit. Your instructor will help build your confidence by reviewing safety procedures, recognising signs of narcosis, and staying within your comfort zone. You’ll never be pushed beyond what you’re ready for. If you need extra time, many centres are happy to offer additional dives or coaching.
Absolutely. adventuro works with accredited dive centres across the UK and internationally to offer Deep Diver courses from both PADI and SSI. You can compare locations, availability, and prices, and book your spot directly through our platform. Whether you're looking to dive a famous wreck or prepare for technical diving, it's a great next step in your scuba journey.
