The Gym Maui personal trainers and instructors are here to help every client to achieve their fitness goals.

Personal Training

Scott Waterloo

Senior Trainer


The gym atmosphere has been a part of Scott Waterloo’s life for over 20 years. He is a personal trainer and athlete in his own right. He enjoys a variety of sports including paddle boarding, scuba diving, and snowboarding. He is a certified scuba instructor and boat captain.


Scott’s vision is to support any individual wanting to achieve personal fitness. Whether you are a beginner or long time gym goer looking to raise your own bar, Scott is here to help you to achieve it.


“Our gym is about our community, our athletes, our members and those who visit Maui. We want them to feel welcome at The Gym Maui.”

Kristin Freeland


NASM Certified Personal Trainer


Bachelor’s Degree in Kinesiology

Corrective Exercise Specialist


Kristin is a National Academy of Sports Medicine Certified Personal Trainer, Certified Pre-natal Fitness Educator, and a Youth Exercise Specialist.

"My philoshy is to instill confidence and to help individuals be the best versions of themselves."



Chris D.


A.C.E.Certified Personal Trainer



B.A. Child Development/Psychology - University of Michigan, Ann Arbor (Dec.1988)

Graduate studies in Organizational Psych - La Salle University (1997-1999)



AAAI Group Exercise Instruction Certification (2002)

Personal Trainer Certification, American Council in Exercise (Nov. 2006)

Jonny G. Spinning Certification (Sept.2007)

Silver & Fit Senior Fitness Certification(May 2012)

Schwinn Indoor Cycling Certification(Nov.2014)

POUND Workout (May 2015)


On Maui (2007 - 2013): 

- Full-time Personal Trainer/Indoor Cycling Instructor/Body Conditioning Instructor/Senior Fitness Instructor at four different facilities on the South Shore including The Gym Maui from 2007 through 2020. 

- Primary school Phys.Ed.teacher for Maui Tumblers and the two Montessori Schools in Kihei (2009 - 2020) 


Experience in Center City, Philadelphia (2013 - 2015)

- Personal trainer at Optimal Sports Health Clubs

- Indoor cycling at Body Cycle Studio

- Group-Ex instructor teaching indoor cycling, HIIT Ropes training camp, HIIT boot camp, body conditioning and POUND at the William G.Roher Center in Voorhees,NJ.




Full-time Personal Trainer and Indoor Cycling Instructor exclusively at The Gym Maui.


And outside of the gym, I have a teenage son. I am a radio DJ on 94.3 KDLX-FM and a gym teacher for Maui Tumblers and you can find me hosting Karaoke at Isana Restaurant on Fri. & Sat.nights.

Mixed Martial Arts


Brian Crespin

Horizon Muay Thai Training Systems

Brian Joe Crespin's passion for martial arts and fitness started when he was 15. In 2004, he started training extensively in the art of muay thai at The San Diego Boxing in California. There he trained under world class muay thai champions and coaches. In 2011, due to his experience in competing, hard work ethic, fitness and perseverance, Brian earned the title "Kru" under the Kaewsamrit Grading System. Brian also owns and operates his own school on Maui, called Horizon Muay Thai Training Systems. Besides teaching muay thai, Brian continually strives to advance new and innovative fitness workouts catering to his students and clients to help them achieve their fitness goals.

Video Links:

The Gym Maui and Horizon Muay Thai

Horizon Muay Thai Pre-Fight Training

Horizon Muay Thai Promo


© 2014 by THE GYM MAUI. Proudly created by CHRIS HAYES

ADDRESS, (Next to Makena CrossFit)

300 Ohukai Rd. Bldg B2-202, Kihei, HI 96753

Tel: 808-891-8108

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