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About Us

Colleen Preston - Owner, Trainer, Speaker, Author

Colleen has been a successful entrepreneur for over 25 years. Her vision has always been to help others succeed. 

From writing Microsoft and other training manuals, teaching Microsoft Certification courses to becoming a successful trainer, speaker and gym owner, she previously owned 3 locations that provided employment for over 12 trainers. 

She also provides exercise nutrition and personal development workshops for setting goals and specializes in PTSD and Trauma workshops to help overcome obstacles to health and business success. 

Currently, she thoroughly enjoys her "Oasis" on the Sunshine Coast where she is developing a retreat centre for Personal Development programs for Corporate or individuals seeking to rise to the next level in their lives. She is also the Nomination Policy Advisor for the Canadian Ski Hall of Fame.

The principles she uses to guide her own life and business are easily transferred into assisting clients with their goals and desires. 

As a facilitator and trainer she takes the time to research and find out exactly what clients want and aims to deliver only the best.


  • Marine First Aid & CPR-C
  • CanfitPro Personal Trainer
  • Group Fitness Leader
  • Sport-Specific Trainer
  • Training Female Athletes
  • Physiology of Aging
  • Rehabilitation of the Knee/Hip/Shoulder​
  • Advanced Weight Trainer L2
  • Exercise Nutritionist
  • Sea Kayak Guide (SKGABC)
  • FitFlow Yoga Instructor
  • Kickboxing Trainer
  • Bootcamp Instructor (Survivor Bootcamp 2000)
  • Marine Radio Operator Ticket 


Colleen Preston Personal Trainer and Owner of Oasis Training Rehabilitation Injury prevention physiology of aging

Colleen Preston Personal Trainer and Owner of Oasis Training Rehabilitation Injury prevention physiology of aging

Team Members

Heather Banfield, Personal Trainer, Group Fitness Leader

Heather Banfield Personal Trainer at Oasis Training Biomechanics of Movement Mobility Group Fitness Leader Myofascial

Heather has developed a broad set of training tools in her 20 years in the health and fitness arena. Formerly, a ranking competitive ameteur bodybuilder in BC, 

Heather has gone on to become a certified personal trainer through the American College of Sports Medicine, a Registered 500hr Yoga Teacher and a Level 1 Crossfit Instructor. 

Passionate about her current studies in biomechanics, she is skillful in coaching quality movement  - from general applications for improved quality of life in reducing pain and increasing vitality to specific applications needed to break plateaus in strength and conditioning. Heather’s holistic approach delivers steady and solid results whatever your unique circumstances may be.

Heather firmly believes - you are meant to be strong - at every age. Compassionate and warm, she brings a practical command of knowledge to her work; skillfully prescribing Strength Training, Olympic lifting, Natural & Bodyweight Movement, Conditioning and Corrective Exercise to keep you continually reaching your goals as you progress through your unique journey. In addition to coaching a wide range of classes, Heather offers both private group and personal training. 

Heather is further developing her skills to become a Certified Conditioning Coach and a Restorative Exercise Specialist.

Sarah Cormack, Kinesiologist/Bowen Therapist/Registered Holistic Nutritionist

Sarah Cormack Bowen Therapist Kinesiologist

Sarah received her Bachelors degree in Kinesiology from Dalhousie University. 

She went on to study Radiation Therapy at the BC Cancer Agency and has worked as a Radiation Therapist at BC Cancer for 20 years. 

Always wanting to bridge the gap between allopathic medicine and alternative therapies, she realized that she needed to align with her soul’s path and study the body’s natural healing power. 

This led her to the practice of Bowen Therapy, studying with Bowtech Canada and becoming a Certified Bowen Therapist in 2008. 

She later became a Level 3 Reiki practitioner and has recently graduated with honours from the Canadian School of Natural Nutrition (CSNN) as a Registered Holistic Nutritionist.

At Oasis Training, Sarah will be offering Bowen Therapy, a holistic treatment that treats the person as a whole and aims to treat the cause of problems, rather than the symptoms. She looks forward to sharing this gentle, yet powerful healing therapy with you.

Trainer Ben / Personal Development Coach

Personal Trainer Ben Smith Oasis Training Group Fitness Leader Personal Development Coaching Coach

Oasis Training is proud to have Ben on our team. 

With 20 years experience as a studio owner and trainer, he offers a wealth of knowledge in fitness, life changing skills and motivation techniques for reaching your goals.

If you are ready for change, Ben is ready to show you how you can transform your life both physically and personally. 

Ben's passion is to help people come to a better understanding of how to centre or ground themselves to experience much more success with less effort, and as a result, becoming a brighter, more positive light in the world.

A full program with Trainer Ben will give you time in the gym, sessions to discover your goals and how to achieve them as well as a variety of methods of training.

Call or email to book an assessment anytime:  604-993-1888