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CaliFlex Retreats


Welcome to Califlex Retreats




We are excited to invite you on this journey

to fully immerse yourself in both Calisthenics and Flexibility..

Travel with CaliFlex to some of the most beautiful locations...

First, why not join our Devon-Based workshop

to get a taste of what to expect from CaliFlex..


13th - 17th September 2023

Califlex has been uniquely designed and founded by insturctors @Adonis_Physiques and @HeidiKarinaOnyx

We will guide you through five days of intensive bodyweight and flexibility training with the guaranteed time to relax, restore and receive a holiday experience with added excursions... 

The ultimate, TRAIN-CATION!

This retreat is suitable for all levels of fitness from beginner to advanced.

We will care for your needs and ensure all exercises are tailored to you.

£850 per person for 5 days (excluding flights)

EARLY BIRD DISCOUNT : £800 if booked before Feb 2023

What the retreat will include...

  • 4-5hrs workshops/training with Adonis and Heidi in the amazing local greek 'BlackBoxFactory Gym'

  • 4 nights in all inclusive 5* Hotel 'Eden Roc', Rhodes, Greece

  • Breakfast, Lunch and Dinner at 7 different restaurants

  • Unlimited drinks

  • Hotel Spa facilities

  • 24hr Beach access

  • Restorative stretch/meditation with Heidi

  • Day trip to Rhodes old town

  • Boat trip (drinks included)

  • Airport transfers  

  • Special Califlex gift upon arrival

Room Infomation: 

Prices are based on two people sharing 

(You will be sharing accommodation with one other person from the reatreat)

Additional supplement for private room £300 upon booking 

Booking information:

20% of fees required upon booking which will secure your space

Final amount paid by June 30th

Refunds are not accepted however you can exchange your space with someone else. 

Additional Training:

1-1 coaching available upon request as well as Aerial Silks training oppotunity  


Adonis Vamvoukakis

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Adonis is a specialist calisthenics and movement instructor with a background in gymnastics. 


He started his journey into movement from a young age when he started gymnastics to help me manage his condition Cystic Fibrosis, a genetic condition affecting the lungs and digestive system (mainly). This is where he gained an understanding of how to move correctly and learned how using your body weight can build and shape your physique. 

After this he led onto trying a few other sports including but not limited to rock climbing, martial arts, weight lifting, calisthenics and more. All of these led to an even greater understaning of just how important different forms of movement are.

He became an Instructor at a young age and continued his personal development and learning to get to where he is now, still learning, and sharing the experience with others to help them understand more about themselves and the training. 


Heidi Karina

  • Instagram

Heidi found a passion with the physical arts in 2010 and further explored the range and diversity of Aerial Silks, Pole and Flexibility through training, performance, and teaching. 

Predominantly self-taught, Heidi developed her skill through completing various courses, private tuition, and workshops with the likes of Serenity Forchion, Bendy Kate, Marion Crampe and Anastasia Skukhtorova.


Apart from being wildly passionate for aerial, Heidi is a Registered Veterinary Nurse with great knowledge of mammalian anatomy and physiology. Much of her knowledge is transferable to the human body which shows through her understanding of movement, safety points, and injury prevention


Heidi has great enthusiasm for her physical art, delivering a unique and informed teaching style with a focus on compelling performance. 

She is the founder of Onyx Aerial and Fitness in Newton Abbot being an inspiring and motivator for many participants.

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