Cosette Jackson

“If you don’t like something, change it. If you can’t change it, change your attitude”
– Maya Angelou

about cosette

Cosette Jackson; One Playground’s Onboarding Specialist, Food-Lover and Ex-Acrobat

With a wealth of knowledge and experience in the realm of fitness and well-being, Cosette is the in-house Onboarding Specialist at Surry Hills; helping newbies explore the gym and reconnecting experienced enthusiasts with high-quality movement. Cosette has a genuine desire to help others. She is dedicated to empowering clients to unlock their full potential and discover their true goals in a welcoming and supportive environment. Drawing upon her diverse background in nutrition and fitness, as well as her previous life as a gymnast, Cosette aims to bring out the best in passion and performance from clients of all backgrounds as well as encourage a positive relationship with food and exercise along the way.

  • Strength and Function
  • Movement Fundamentals
  • Gymnastics
  • Pre- and Post-Natal Exercise
  • Habit Formation
  • Nutrition

training philosophy

My philosophy is that everybody deserves to feel good when they move. Whether it is hitting a PB, being amazed by a new skill, or simply enjoying getting out and being active- bodies were made to function. It is incredible to see the physical and mental transformations that take place when you treat your exercise regime as a way to respect your body rather than punish it.

education, experience & achievements

  • Cert III Personal Trainer
  • BSc in Nutrition & Dietetics (UK)
  • PgDip in Performance Nutrition
  • Group Fitness Instructor
  • Women’s Fitness Specialist (pre- and post-natal)
  • Level 1 UKCC- Gymnastics Coach
  • Background as an elite international gymnast

3 fun facts

  1. I’m an adventure-seeker but not an adrenaline junky. I love to explore new places and hike around national parks- but you will never find me jumping out of an aeroplane.
  2. I love experiencing new cultures. When I was 18, I left home to be an au pair in Madrid, but I left when the 6-year-old child bit me.
  3. I am from the UK, and moved to Sydney in 2023, the first time I visited, I was just 6 months old.




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