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Steph action 4

Steph action


I became a passionate and committed Aqua instructor though a series of life events.

When my children were small and they were learning to swim it became very boring sitting and watching. So helping seemed the solution. From there I progressed to qualify as a swimming instructor and coach. Then followed various gym, ETM etc. qualifications. Put the swimming with the ETM and what do you have. This was my epiphany! Water Exercise! My passion! – this was circa 1989.

Out to the States to get more qualifications and finding AEA and Hydro-fit together with Speedo gave me the “icing on the cake”.
In 1994 I created Hydro-Actif and the rest is history. From training courses with 2 or 3 students the company has grown to have a team of 5 dedicated tutors and has trained thousands of instructors.

The highlight of my year is the convention in May in Florida – IAFC. I have attended and presented for them for many, many years as well as regular visits to teach at other events such as IDEA and Hydro-Fit. This direct link to education in the States has allowed us at Hydro-Actif to be at the cutting edge of information.

I am thrilled to be the organiser of the Annual Hydro-Actif convention at Nottingham University (20th year) and the Southern Seminar in London annually.

Hydro-Actif will soon be offering training for the Arthritis Foundation in the UK as I continue to bring and share the best in water exercise education to come from the US to the UK.

Cassie Biddulph tutor


It’s about passion, find your passion and immerse yourself in it. At school my passion was Volleyball, then it became Group Exercise, then I did my Aqua training and it all made sense.

In my workshops for Hydro-Actif I have combined my love for the mediums of dance, Pilates and yoga with my passion for Aqua

I have been a Fitness instructor for over 25 years and a tutor for Hydro-Actif for 10. My goal is to help create a new generation of passionate and informative Aqua instructors to spread the enthusiasm for the benefits of exercising in water.

Cassie action


I have been teaching in the fitness industry for over 20 years now. I teach a wide range of fitness classes. Aqua, LBT / Aerobics, Zumba, Zumba Aqua , body conditioning , HITT, senior classes and boot camp sessions.

From a young age I have always been interested in sports and fitness and helping people reach their fitness goals young and old. I started teaching at a health club as an attendant/ gym instructor and worked my way up to an assistant manager helping run the club, teaching classes and gym workouts for clients.

I decided then to go out and become freelance and work for myself. To this day I still love and teach with a passion.


Having always been interested in sport from a young age I became curious about human biology, how injuries occur and how we can heal. This curiosity led me to water aerobics and I found my passion.

I did my first aqua training at 17 and have grown my knowledge from there. I’m now a qualified sports rehabilitator and I love that no matter what your fitness ability or age, Aqua aerobics is great for everybody. You might be a pentathlete that can use the drag of the water for an intense cardio workout or you could have a recent knee injury and use the buoyancy of the water to help regain full range of movement.

As an instructor I hope to share my knowledge and passion to all and help new instructors see that the benefits from aquatic training vast and very rewarding.


I have been in the fitness industry since 2011, following a career in Secondary Education as a Teacher of Physical Education and Head of Year. I trained initially in London as an Aqua Instructor, originally to assist with covering classes. Aqua became an absolute passion and I regularly attended water training and conventions organised by Hydro-Actif, to further develop my teaching.

Now a qualified Personal Trainer, Pilates and Studio Instructor, I am based at the Spiceball Leisure Centre in Banbury. I have now turned my focus to aqua and have further interests in expanding the programme offered. I am excited to be part of the new Hydro-Actif Team and look forward to continuing my journey of learning and sharing knowledge, within a network of expertise.