Meet Your Coach, Greg
With over 20 years of experience and a NASM certification, Greg Killeen brings the aloha spirit to every workout. He believes fitness should be fun, accessible, and safe for everyone—no matter your age or ability. On Kaua‘i’s stunning shores, Greg creates personalized training plans that help you build strength, boost confidence, and make healthy habits stick for life. Ready to take the next step? Scroll down to see our gallery of real clients crushing their goals!
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Personal Training Services
Unique, personalized training programs designed to guide you toward a healthier way of life—accessible to everyone regardless of fitness level.
General Fitness
Balanced workouts to build strength, improve cardio, and enhance mobility for everyday life.
Learn More →Strength & Conditioning
Targeted plans to increase muscle, boost endurance, and elevate your overall athletic performance.
Learn More →Sports‑Specific Training
Custom drills and routines to help you dominate your sport—be it surfing, soccer, or any other passion.
Learn More →Powerlifting & Bodybuilding
Expert coaching on technique and programming for safe, effective muscle growth and strength gains.
Learn More →Take the Next Step in Your Fitness Journey
Free Fitness Evaluation
Get a personalized assessment at no cost—discover exactly where you are and where you can go.
Schedule Your Free EvalTransparent Pricing
See our straightforward, no‑surprise rates for single sessions, 12‑packs, and group training.
View Training RatesBook Your First Session
Ready to jump in? Reserve your spot with Greg and start building healthy habits today.
Book Your SessionClient Success Stories
See what our clients have to say about their transformation journey
“I have been working out with Greg at Full Focus Fitness for a little over 2 years, and I love it! I get bored real easy, and I don’t push myself. Greg takes the thinking out of what to do, and he ensures my form is correct. Knowing that Greg has eyes on me, I make sure to complete all the reps. 😁 When I first started, I thought my form was good on numerous exercises. Boy, was I wrong. Greg corrected my form, and I could feel the right muscles getting worked. I have definitely gotten stronger, and muscles have been showing themselves. I am glad that I found him and Full Focus Fitness.”
“I love working out and exercise, but I get bored very easy and I don’t have as much fun when I try to make up my own workouts. Greg Killeen trains me and mixes up every workout which keeps me coming back for more. I’m so much stronger and my running has improved as well!!! Come check him out!!!!!”
“Best hour of my day! Love the personal attention and the encouragement to push through! Every workout is varied so all of my muscles get a chance to work! #swoleandflexy”