Skills development at the home of British diving

There is no better place to learn to dive than in the sea – we carry out all of our diver training from one of our three purpose built dive boats on sites in and around Plymouth Sound.

All of our training courses are designed not only to teach you the underwater skills required as a diver but also to teach you proper boat diving techniques and etiquette. Boat diving is the primary type of scuba diving here in the UK so it doesn’t make sense to learn any other way!

All of our courses have been carefully refined for more than a decade to deliver you the highest quality and standard of training. This will enable you to harness the necessary skills and understanding to set you on the right path to being the best and safest diver possible.

Our friendly dive instructor team is always available to advise you on how to start or develop your diving skills.

RAID – our certification agency

RAID is a globally recognised SCUBA training agency focused on delivering an extremely high quality of diver training. Raid started life as a technical training agency and quickly branched in to the recreational diving scene. With this, it took it’s technical mindset and put this in to all of the recreational dive courses. This means that all dive courses run with RAID, whether they be technical or recreational, are massively safety focussed and aim to make all divers qualify with a solid understanding of dive safety procedures and a strong ability to maintain proper control in and out of the water.

As a result of this, RAID is our agency of choice and the only dive training agency we teach with. 

RAIDs theory sessions for all courses are conducted from the comfort of your own home. All paperwork, quizzes and exams can be done online prior to the physical course commencing. This means that when you visit us for the first day of your course, we can get straight on with the practical teaching elements. Giving you the most amount of time available to dive!

Open Water 20

£600 (with drysuit £700)

The Open Water 20 course is the entry level diver qualification needed to pursue your dreams beneath the seas! This course is designed to give you an insight in to the underwater world and will teach you basic SCUBA skills that will then enable you to conduct dives anywhere in the world to depths of up to 20 metres! 


Upon formally securing your space on the Open Water 20 course with In Deep, you’ll work your way through your online Open Water 20 manual, completing each of the knowledge reviews as you go, all in the comfort of your own home. This allows us to spend less time in the classroom and more time in the water!

Confined Water Sessions

During our confined water sessions you will develop basic diving skills in the comfort of a heated swimming pool, ready for the open water environment. We start with simple skills like removing and replacing your regulator, building on confidence and competence throughout the sessions. By the end of the confined water dives you will find yourself swimming across the pool without your mask on and hovering completely neutrally buoyant!

Open Water Diving

As part of your course you will complete four Open Water dives from one of our three purpose built boats, exploring shallow local dive sites from reefs to wrecks; building on your skills and confidence from the confined water sessions. On completion of your course, you will have developed mastery of all skills, peak performance buoyancy and high in-water awareness. You will then be certified as an Open Water Diver!

How Long Will It Take?

A typical Open Water course with In Deep runs over four days, however the courses are performance based and in some cases it could take longer to meet all performance requirements. The first two days take place in confined water and the final two days are out at sea.

What’s Included?

The RAID Open Water Diver programme is £600 including all course related materials, pool entry fees, equipment, four boat dives and certification fees.

Why In Deep?

During your course you can take full advantage of use of all onsite facilities at the Mount Batten Watersports Centre, including free parking, toilets, showers, changing rooms, secure storage of personal items, cafe, bar, restaurant, classrooms and waterside views. In Deep uses heated swimming pools for confined water sessions, with changing facilities, showers and secure storage of personal items. In Deep completes all open water training dives in local bays from one of our two dive boats. Upon completion of your Open Water 20 diver programme you will be invited to join the In Deep Dive Club for continued guidance and to build upon your diving experience. You will also have the chance to enrol on to more advanced courses and further explore the underwater world.

What Do I Need To Enrol?

  • Minimum 16 years of age.
  • You need to be able to swim 200m continuously and comfortably without assistance as well as complete a 10 min survival float – this is done in the swimming pool.
  • Complete medical declaration forms, Open Water booking form and T&C’s.



The Explorer 30 scuba diving programme is designed to build on your confidence and competence in the water, designed to take certified divers to the next level of underwater exploration. The course comprises of five adventure dives which gives you the opportunity to try some of diving’s most exciting and rewarding specialities. The Explorer 30 course certifies you to dive to a depth of 30 metres within recreational no decompression limits.


Upon formally securing your space on the Explorer 30 diver course, you will be supplied with your course materials. You will work your way through your materials completing the 5 designated knowledge reviews via online learning. This allows us to spend less time in the classroom and more time in the water!


In the Explorer 30 programme you will complete 5 dives. Core modules comprise of Deep diving & Underwater navigation, the remaining 3 speciality dives can be selected by yourself. You have the choice of multiple specialities in diving such as wreck diving, peak performance buoyancy diver, boat diving and dry suit diving to name a few. The focus will be on developing advanced diving techniques, refining buoyancy control, and building confidence in managing various diving situations.

How Long Will It Take?

The Explorer 30 course with In Deep generally runs over 2 full days including 5 dives.

What’s Included?

The Explorer 30 programme is £400 including all course related materials, equipment hire, boat fees and certification fees.

What Do I Need To Enrol?

  • Minimum 16 years of age
  • Hold current Open Water certification
  • Complete Medical declaration forms and course booking terms and conditions


£350 (with dry suit £400)

The Dry Suit speciality enables you to increase your exposure protection underwater via the use of a dry suit system. Dry suits significantly delay the cooling process. Whether you want to dive for longer, deeper or at cooler times of the year, the dry suit is a valuable piece of equipment, particularly when diving in UK waters. The dry suit also offers a redundant means of buoyancy control required for deeper & more technical diving.

Theory Session

Although this is a practically focused course, we do cover some theoretical aspects of the drysuit before entering the water.

The academics cover, but are not limited to, the following:

  • Hypothermia
  • Drysuit construction and how they stay dry
  • Best suit for recreational diving and how do you know if it fits correctly
  • Insulation and undergarments
  • Seals, zips, valves and accessories
  • Buoyancy and inflation systems
  • Annual servicing

In-water Drills

During your course, we will venture out on to sea on one of our three purpose built dive boats to conduct your in-water practical training. This training will consist of learning some of the basic skills necessary when using a drysuit, including; buoyancy control, trim techniques, suit equalization, disconnecting and reconnecting the dry suit hose, gas venting and emergency procedures.


  • 16 years of age
  • Open Water diver certification (or equivalent)



The Nitrox Diver or Enriched Air Speciality is one of our most popular speciality diving courses. On completion of this course you will be certified to use a mixture of gas with an Enriched Oxygen content ranging from 22% – 40%. Increasing the Oxygen content extends the no decompression limits, meaning that you can stay in the water for longer. It’s particularly beneficial when diving in the 18m – 40m range and when repetitive diving. The Enriched Air diver course is often a pre requisite to deeper diving qualifications.

This course is a classroom-based course.

Theory Session

The Nitrox Diver Course covers a range of topics, including but not limited to:

  1. Introduction to Enriched Air Nitrox: Understanding the benefits, considerations, and limitations of diving with Nitrox blends.
  2. Physics and Physiology of Nitrox Diving: Exploring the effects of increased oxygen levels on the body, and how to manage oxygen exposure.
  3. Dive Planning: Learning how to analyse and label Nitrox cylinders correctly, calculate maximum operating depths (MOD), and plan Nitrox dives safely.
  4. Equipment Considerations: Understanding the use of specialised Nitrox diving equipment, including oxygen-compatible regulators and cylinders.
  5. Emergency Procedures: Developing skills to handle potential Nitrox-related emergencies and incidents.

Minimum Requirements

  • Minimum of 15 years old
  • Open Water diver certification (or equivalent)



The HSE First Aid at Work Course is a comprehensive and essential training program designed to equip participants with the knowledge and skills necessary to respond effectively to medical emergencies in the workplace. This course adheres to the guidelines set forth by the Health and Safety Executive (HSE), ensuring that learners receive up-to-date and industry-standard training.

Throughout the course, participants will learn how to confidently assess and manage various types of injuries and illnesses that may occur at their workplace. The curriculum covers a wide range of topics, including basic life support techniques, wound care, fractures, burns, sudden illnesses, and more.

Key Course Highlights

  1. First Aid Principles: Understand the fundamental principles of providing first aid in a workplace setting, emphasizing the importance of quick and appropriate responses to various emergencies.
  2. CPR and AED Training: Learn cardiopulmonary resuscitation (CPR) techniques for adults, children, and infants, as well as how to effectively use an automated external defibrillator (AED).
  3. Wound Management: Gain expertise in managing different types of wounds, including cuts, grazes, and punctures, to prevent infection and promote healing.
  4. Fractures and Musculoskeletal Injuries: Develop skills in recognizing and providing immediate care for fractures, sprains, and strains, minimizing further damage and discomfort.
  5. Medical Emergencies: Acquire knowledge and hands-on practice in handling sudden
  6. Environmental Hazards: Learn how to respond to workplace incidents involving heat stroke, hypothermia, and poisoning.
  7. Incident Assessment and Reporting: Understand the importance of accurate incident assessment and proper reporting to ensure workplace safety and compliance with regulations.
  8. Role Play and Practical Scenarios: Engage in simulated emergency scenarios to enhance problem-solving abilities and build confidence in applying first aid techniques.

Upon successful completion of the HSE First Aid at Work Course, participants will receive a certification that is valid for a specified period (typically three years). This certification not only equips individuals with life-saving skills but also satisfies legal requirements in many workplaces, demonstrating their commitment to maintaining a safe and secure working environment.

Whether you are a manager, employee, or designated first aider, this course is a crucial investment in workplace safety and well-being. Be prepared to act promptly and efficiently during critical situations, making a positive difference when it matters most.



When should you complete a Scuba Reboot?

The RAID Scuba Reboot course is a comprehensive program designed to refresh and enhance the skills of certified divers who may have been inactive for an extended period or feel the need to reinforce their diving capabilities. This course caters to certified divers of all levels, providing them with the perfect opportunity to reignite their passion for diving while building their confidence and proficiency in the water, all under the direct supervision of a professional diver.

What Will I Do?

Review and refresh open water skills and key diving techniques. The Open Water session is a single supervised dive, giving you the opportunity to practice core diving skills in the open water environment from one of our three purpose built dive boats. This will include an equipment overview and theory recap session.

How Long Will It Take?

We run our Scuba Reboot session on a Wednesday evening where participants can practice key skills and explore a sheltered dive site under the guidance of an experienced instructor.

What’s Included?

Our full refresher programme is £125 and includes all equipment hire, gas fills, boat fees, onsite parking and hot drinks whilst on board.

What Do I Need To Enrol?

  • A valid Open Water or higher dive certification
  • Completed Medical Statement
  • Proof of previous training and experience



The RAID Oxygen Administration Course is a comprehensive and hands-on training program designed to equip participants with the essential knowledge and skills to safely administer oxygen therapy in various emergency situations. This course is tailored for divers, dive professionals, and anyone involved in water-based activities where immediate access to oxygen can be critical.

In this course, participants will gain a deep understanding of the physiological effects of oxygen and its role in managing diving-related injuries and illnesses. Through a combination of theoretical learning and practical scenarios, participants will learn how to recognize symptoms of decompression sickness, lung overexpansion injuries, and other diving-related incidents where oxygen therapy is vital.

Key components of the course

Oxygen Administration Theory:

  • Understanding oxygen physiology and its benefits in diving emergencies.
  • Identifying symptoms of decompression sickness, arterial gas embolism, and other diving-related injuries.
  • Exploring different oxygen delivery systems and equipment.
  • Proper handling, storage, and maintenance of oxygen equipment.

Practical Oxygen Administration Techniques:

  • Simulated scenarios to practice administering oxygen in real-life emergency situations.
  • Properly fitting and using various oxygen delivery masks and systems.
  • Effective communication and teamwork during oxygen administration.

Dive Emergency Response Planning:

  • Developing emergency response plans specific to diving environments.
  • Understanding the importance of early recognition and prompt oxygen administration.
  • Implementing best practices for managing oxygen supplies during dive trips.

Safety and Risk Management:

  • Comprehensive safety guidelines to ensure the well-being of the patient and the administering team.
  • Understanding potential risks and contraindications of oxygen therapy.
  • Developing strategies for preventing oxygen-related accidents.

Upon successful completion of the RAID Oxygen Administration Course, participants will receive certification as proficient oxygen providers. This qualification will enable them to respond promptly and confidently to diving emergencies, enhance the safety of divers, and be an invaluable asset to dive operations, dive clubs, and water-based activity centers.

Join us in this crucial course to become a capable and confident oxygen provider, contributing to safer diving practices and ensuring the well-being of divers in emergencies.



The RAID Twinset Foundations Course is a comprehensive and hands-on training program designed to equip divers with the essential knowledge and skills needed to safely and confidently use twinset configurations for Recreational and Technical diving. Twinset diving offers increased gas redundancy, extended bottom times, and enhanced buoyancy control, making it a popular choice among serious divers looking to explore more challenging dive environments.

Throughout this course, participants will delve into the fundamental concepts, techniques, and safety protocols associated with twinset diving. The course is open to experienced divers who are already certified as RAID Open Water Diver or equivalent.

Course Content

Introduction to Twinset Diving:

  • Understanding the benefits of twinset configurations
  • Comparing twinset to single tank setups
  • Essential gear and equipment considerations

Gas Management:

  • Learning gas planning and calculations for twinset diving
  • Analyzing gas mixtures and utilizing different gases
  • Handling emergencies related to gas supply

Buoyancy and Trim:

  • Achieving optimal buoyancy control and trim in twinset configurations
  • Handling twinset-specific buoyancy challenges
  • Practicing buoyancy skills in confined water and open water settings

Equipment Configuration:

  • Assembling and adjusting the twinset setup
  • Understanding various manifold and isolation systems
  • Troubleshooting and maintenance of twinset equipment

Diving Procedures and Techniques:

  • Descents and ascents with twinset configurations
  • Proper finning techniques for efficiency and comfort
  • Buddy communication and emergency procedures specific to twinset diving

Course Format

The RAID Twinset Foundations Course is typically conducted over two days with participant engaging in knowledge development, skill-building exercises, and scenario-based training to ensure they develop proficiency in twinset diving techniques.

Upon successful completion of the course, divers will receive the RAID Twinset Foundations certification, enabling them to embark on thrilling twinset dives with increased confidence, safety, and efficiency. This course also serves as a prerequisite for those interested in pursuing more advanced technical diving certifications within the RAID curriculum.



The RAID Master Rescue Scuba Course is an intensive and comprehensive program designed to equip experienced divers with the advanced knowledge, skills, and techniques necessary to conduct safe and effective rescue operations in various underwater scenarios. This course goes beyond the basic rescue skills covered in earlier levels and focuses on developing leadership, problem-solving, and teamwork abilities to handle complex rescue situations.

Course Curriculum

  1. Advanced Dive Theory: Delve into more complex dive physics, physiology, and decompression theory to understand how various factors can impact rescue situations.
  2. Risk Assessment and Management: Learn how to evaluate potential risks during dive operations and develop strategies to mitigate those risks.
  3. Leadership and Communication: Enhance leadership skills and effective communication techniques to lead rescue teams confidently and ensure clear communication underwater.
  4. Scenario Planning and Execution: Practice planning and executing rescue scenarios in simulated environments, allowing students to apply theoretical knowledge to real-world situations.
  5. Advanced Search and Recovery Techniques: Learn specialized search patterns and use advanced equipment to locate and recover missing divers or objects underwater.
  6. Handling Panic and Stress: Develop techniques to manage panic and stress in both oneself and distressed divers to promote calm and efficient rescue procedures.
  7. Rescue in Challenging Environments: Gain experience and confidence in managing rescue situations in currents, low visibility, and other challenging conditions.
  8. First Aid and Oxygen Administration: Receive training in first aid techniques and the administration of emergency oxygen to provide immediate care to injured divers.
  9. Equipment Considerations: Understand the proper use and maintenance of rescue-specific equipment, including lifting devices and rescue slings.
  10. Post-Rescue Procedures: Learn the essential steps to handle post-rescue situations, including debriefing and reporting.


Upon successful completion of the RAID Master Rescue Scuba Course, participants will receive the RAID Master Rescue Diver certification. This prestigious certification demonstrates the diver’s high level of competency in rescue skills and leadership, opening up opportunities for exciting and rewarding diving experiences.

Course Conclusion

The RAID Master Rescue Scuba Course challenges divers to push their boundaries and become proficient in managing complex underwater rescue scenarios. By honing leadership abilities and rescue techniques, participants will emerge as confident and capable rescue divers, prepared to take on responsibilities and contribute positively to dive teams and the diving community.

How Long Will It Take?

The RAID Master Rescue Scuba Course is typically conducted over a period of 5 to 7 days, depending on class size, student progress, and local conditions.

What Do I Need To Enrol?

To enroll in the RAID Master Rescue Scuba Course, participants must meet the following prerequisites:

  1. Minimum age of 18 years
  2. RAID Advanced 35 (or equivalent) certification or higher
  3. Proof of a minimum of 60 logged dives, with at least 25 dives using enriched air Nitrox



What Will I Do?

You will learn basic diving theory and how the equipment works with an instructor led presentation. You will then experience what the equipment feels like, find out what it’s like to breath underwater and learn some basic underwater skills including removing, replacing and clearing your regulator, clearing water from your mask and establishing neutral buoyancy.

How Long Will It Take?

The Try Dive experience usually run over an hour session.

What’s Included?

The Try Dive experience programme is £50 per person, including instructor lead presentations, pool entry fees and equipment hire.

Why Enrol With In Deep? 

In Deep uses a heated indoor swimming pool, with changing facilities, showers and secure storage of personal items.

In Deep’s instructors are friendly, professional and very experienced in working with students of all ages.

In Deep can offer exclusive corporate and team building programmes upon request.

In Deep can provide specially tailored Try Dive programmes for schools.

What Do I Need To Enrol?

You need to be a minimum of 12 years of age and be able to complete a medical questionnaire (available on request). You will also need to be able to swim comfortably.

How Do I Book?

To book your Try Dive experience give us a call on 01752 405400 or send us an email at info@indeep.co.uk.

What’s Next?

Once you have completed your Discover SCUBA Diving programme you’ll want to continue and expand on your diving experience with an entry-level qualification.

The next step is the Open Water Diver course, which is an internationally recognised qualification. This qualification will open up unlimited amounts of diving opportunities and you will then be able to make the most of the fantastic diving on your doorstep in Plymouth! You will also be invited to join our very own dive club here at In Deep!

Gift Voucher

Give someone the gift of SCUBA! A Try Dive experience makes for a fantastic gift. We offer personalised experience vouchers upon request, at no additional cost.