Become a Certified Oxygen Advantage® Coach

24-29 September

Join our transformative 5-day retreat on the Costa Brava with master coaches Gray Caws and Andrew Ritchie. Become a certified coach while enjoying a truly holistic wellness experience.
Rereat Can Jan, Ossinyà 17850 Sant Ferriol, Catalonia, Spain

Find out more with a personalised Strategy Call!

Explore your learning options with Gray Caws – no sales pressure, just guidance

Considering this course? Spend 30 minutes with Gray to find the right fit for you. This isn’t a sales pitch — it’s your opportunity to:

  • Receive tailored advice: Straight from Gray, focused solely on what’s best for you.
  • Gain Insight into the training: Understand the content and how it can help you meet your goals.
  • Get real answers: Ask anything in a no-pressure environment to make the right choice.
  • Clarify your path forward: Leave with a clear plan, not a sales pitch.

Curious about your possibilities? Book your free Strategy Call below today — discover your path forward.

from £2995.00 per person

Single and shared twin room available with en-suite bathroom.

3-month payment plan available.

Oxygen Advantage Instructor Training: Costa Brava 24-29 September

Become a coach in the revolutionary Oxygen Advantage method


Certification opportunity

Certify to teach the Oxygen Advantage breathwork method.


Exclusive online access

Immediate access to extensive online training portal.


5-day retreat experience

Experiencial learning during a 5-day all-inclusive retreat in the heart of the Costa Brava. 


Training with Patrick McKeown

14 hours live online training with leading breath expert and OA founder Patrik McKeown.


Personalised coaching

2 x 30-minute one-to-one sessions with lead coach.

Who is the training for?

  • Coaches who want to complement an existing practice or business.
  • Medical doctors, therapists and other health professionals who are looking to deliver a deeper understanding in breathwork and functional movement to patients and clients.
  • Anyone who wants to fully immerse themselves in the power of breath.

Prerequisites to joining the retreat

You don’t need any qualifications to start the certification. There are no prerequisites to join the course, everyone is welcome.


The certification process

When you are confident with the course material you have learned you need to:

  • Pass an online exam.
  • Complete three case studies on practise clients through three weeks of coaching (online via zoom or in person).

There is no time limit on the exam or case studies. You can progress at your own pace through the learning material.

[I really liked] combining the practical with the theory. The walk on day 3 was excellent, and then combining that with the indoor walking and the practice was a good finish to the course. I thought Gray was very knowledgeable and welcoming, very relaxed and made everyone feel comfortable. (November 2023)


Company Director, Fiit

Gray was helpful in listening to me, giving me feedback, and helping me to further find the voice for my brand. He also gave me good next steps to take. I also feel he is someone I can reach out to as I progress along the way, for which I am very grateful.
Robyn Reid

Learn how you can help people …

Embark on a transformative training with a 5-day retreat in the serene forest landscapes of Spain’s Costa Brava.

This immersive experience is led by Master Oxygen Advantage coaches Gray Caws and Andrew Ritchie. Plus, enrich your learning experience with live online sessions directly from the creator of Oxygen Advantage, Patrick McKeown.

Here are the key features of the programme:


In-depth curriculum

Dive into the comprehensive Oxygen Advantage programme covering a spectrum of breathwork, from fundamentals to advanced techniques.


Science-based approach

Our training is grounded in the latest research and developments in respiratory physiology and health.


Hands-on experience

Learn by doing. Our programme emphasises practical skill development ensuring readiness to coach others effectively upon completion.


Hybrid learning

Enjoy the flexibility of our blended training format, combining an immersive in-person retreat with rich online materials.


Global community

Join a network of Oxygen Advantage coaches worldwide, fostering opportunities for collaboration and ongoing learning.



Become a certified Oxygen Advantage Coach upon successful programme completion, gaining recognition as a skilled breathwork professional.


Continued professional development

Take advantage of our continued education and professional development opportunities in breathwork coaching.

Breathe Light practice
AIM corporate coaching
Gray Caws teaching qigong by the shore of Loch Long

You get …


A 5-day retreat experience

You’ll have exclusive use of the Retreat Can Jan nestled in the rolling hills of Garrotxa National Park, Catalonia, Spain

  • Oxygen Advantage Instructor Training modules
  • Morning qigong
  • Forest walks and trail runs (running is optional)
  • Conscious Connected sessions
  • Sauna and swimming pool
  • Delicious local freshly cooked meals
  • Choose from single or shared twin rooms all with private bathroom facilities

Live online classes with Patrick McKeown

14 hours of live, interactive online classes with the creator of the Oxygen Advantage, Patrick McKeown. All classes are recorded and available online for lifetime access.


300+ hours of study materials

Online prerecorded video tutorials, Instructor Training Manual and specialist Zoom workshops with worldwide Master Instructors on a range of topics.

Plus Exclusive bonuses:


Exploring HRV (worth £295)

Unlimited access to a globally-unique module delivered by Master OA Coaches Andrew Ritchie and Gray Caws. Get a practical understanding of Heart Rate Variability. Learn how to monitor and measure HRV and get exercises to help regulate the nervous system.


Run With Ease (worth £295)

The Run With Ease Course offers a foundational framework and skill set to develop good habits that have an effect on mood, motivation, energy levels, and our ability to enjoy running (and walking) no matter what age or fitness level.

… an enjoyable weekend of education – the small group, personal attention … layering of course content. The whole group interacted and the sessions were on the move.
Paul Collins

Owner, Paul Collins Fitness

Gray is a great and passionate teacher with different fields of expertise. He has a broad vision on breathwork and on its practical uses. [I particularly enjoyed] the group connection and the playfulness.
Sara Bigatti

Movement and Breath Coach

The Venue – Retreat Can Jan

The grounds of Ardmay House Retreat Centre

Our training venue is the serene oasis of Can Jan, a charming Catalan masía nestled in the picturesque hills of Garrotxa National Park. Situated in the quaint municipality of Sant Ferriol, just a short 4 km drive from the historic medieval town of Besalú, Can Jan offers a tranquil retreat from the hustle and bustle of daily life. This beautifully renovated masía has carefully preserved its unique characteristics, blending traditional charm with modern comforts to create a truly unforgettable experience.

Can Jan boasts 10 elegantly appointed bedrooms, each offering the luxury of a private bathroom. These stylish and comfortable rooms provide the perfect setting for relaxation and rejuvenation during your stay. The dedication to your comfort is evident in every detail, ensuring a peaceful and restorative visit.

Culinary delights await you at Can Jan, where meals are an experience in themselves. Renowned for its healthy and flavorsome cuisine, the B&B places a strong emphasis on using minimal refined sugars. Most ingredients are sourced from the property’s own vegetable garden or local producers, guaranteeing freshness and quality. The highlight of your culinary journey will be Can Jan’s famous breakfast, a feast for both the eyes and the palate, setting you up perfectly for the day ahead.

Your stay at Can Jan includes unrestricted access to all facilities, ensuring a stay filled with relaxation and enjoyment. Unwind in the warmth of the sauna, where the fine, intense heat offers a soothing escape, boosting your inner vitality and resistance. For those seeking refreshment, the outdoor pool, measuring 15m by 10m, beckons. Immerse yourself in crystal clear, bacteria-free water, meticulously maintained with daily pH checks. Afterwards, lounge by the pool with a chilled drink from the honesty bar housed in the pool house, surrounded by the tranquil beauty of a lush, green environment.

At Can Jan, every aspect of your stay is thoughtfully designed to provide an idyllic balance of relaxation, health, and luxury, making it the perfect setting for the Oxygen Advantage Instructor Training. Come and discover the peaceful allure of Can Jan, where every moment is an invitation to unwind and rejuvenate in the heart of Catalonia’s natural beauty.

Your Investment

£2,995.00 per person (Sharing twin room)
£3,495.00 per person (Own room)

3-month payment plans available

All rooms with en-suite facilities.


Oxygen Advantage Instructor Training: Costa Brava 24-29 September

Become a coach in the revolutionary Oxygen Advantage method


Your Coaches

Gray Caws Founders & Director of Adventures In Movement

Gray Caws

Gray is a firm believer that optimal mental and physical health can be achieved through efficient breathing, a focused mind, and body awareness. As a specialist personal trainer, running coach, and breath coach from the UK, Gray is a master in the Oxygen Advantage® and Buteyko methods.

With training from globally-renowned coaches like Patrick McKeown (breath), Lee Holden (meditation, tai chi, and qigong), and Danny Dreyer (ChiRunning), Gray has honed his craft and is an expert in his field.

He has had the privilege of guiding breathwork sessions on the ASICS Movement For Mind programme, working closely with prominent mental health researcher, Dr. Brendon Stubbs. Launched in 2021, this programme documented the mental well-being of almost 200 volunteers, with remarkable results. In fact, 70% of participants became more active after completing the program, a testament to Gray’s expertise and guidance.

As the founder and director of Adventures in Movement, Gray is dedicated to helping individuals optimise their physical and mental health through breathwork, movement, and mindfulness.

Andrew Ritchie, Master Oxygen Advantage Coach

Andrew Ritchie

Andrew is a Master Oxygen Advantage instructor, with a specialised interest in Heart Rate Variability. He’s also the founder of Performance Breathworks and an AIM Run With Ease coach.

He has been working in the outdoor health and wellness industry for 20 years and has helped thousands of children and adults become more resilient and achieve their goals through a variety of activities.

Currently Andrew works with corporates, professional and amateur sport, schools and individuals, as well as organising and leading retreats and adventure holidays.

“I’m passionate about breathwork and the great outdoors. You’ll realise why when you see the amazing environment that I have the opportunity to work in.”

Patrick McKeown

Patrick McKeown

Patrick McKeown BA, MA, is considered to be one of the foremost teachers of functional breathing. He has authored eight books, is published in 14 languages and has taught breathing for mind, body and sports since 2002.

He has worked with more than 7,000 clients from children to the elderly, from the most unwell to elite athletes.

He has channelled a wealth of experience, expertise and passion into the delivery of this simple, easy to follow training, in order to share his approach with others, so that many more people can enjoy better health, performance and quality of life.

Conscious Connected Breathwork Facilitators

Richard Blake – Conscious Connected Breath Facilitator

Richard Blake

Richard is a PhD Candidate currently running the largest ever randomised controlled trial on Conscious Connected Breathing. He has been involved in the wellness industry for nearly 20 years, starting out as a fitness model for Men’s Health Magazine; he then transitioned to study nutrition and exercise while owning a CrossFit gym in Southern California.

For the last few years, he has been studying psychotherapy with a particular interest in non-ordinary states of consciousness as tools for healing mental illnesses. His studies have included apprenticing with the Shipibo Tribe in Peru while studying ayahuasca, Clarity Breathwork in Costa Rica, Reiki in Cambodia, and meditation in India.

Richard is also an avid ‘bio-hacker’ and combines his knowledge of counselling, breathwork, nutrition, and fitness to improve people’s health and fitness in a holistic way.


Natalia del Olmo – Conscious Connected Breath Facilitator

Natalia del Olmo

Natalia is a Conscious Connected Breathwork Facilitator, Life Coach, Reiki Master, and Psychotherapist in training.

Natalia has a degree in Sports Science and a background of 10+ years working with people in the fitness and wellness industry. She is passionate about helping individuals improve their well-being through accessing expanded states of consciousness and using the breath as a therapeutic tool for personal healing and growth.

Natalia has a holistic and feminine approach to her work. She is also passionate about developing facilitators and contributing to the growth of the breathwork industry. She works for Breathguru as a Teacher Training Assistant and Leader of the Breatguru Online Training.