BUILD STRENGTH.
LIVE LIFE.
A strong body is what allows you to move better, enjoy life and explore without limits.
Coaching built for those who want to train with purpose and live for adventure.
For nearly 20 years, I coach people to live their lives, better.
Limited spots available.
Your Fitness Partner Awaits
I am a strength coach specialising in building resilient, robust bodies - from lifestyle clients to endurance athletes and ultra runners.
I am also a running coach, working with complete beginners through to ultra-distance athletes -integrating strength and run coaching to build long term sustainable performance without the burn out.
My coaching is built on one core belief: strength is the foundation, the base for everything. Not just performance - but how you move, feel, and function in everyday life.
Whether you’re new to training or looking to push your limits, I focus on developing strength that supports your lifestyle first - so you can train hard, stay durable, and perform when it counts.
Through 1:1 and small semi-private coaching, I deliver a personalised, boutique experience. No generic programs. No one-size-fits-all approach. Every plan is built with intent, tailored to the individual, and designed for long-term progression.
Base2Summit Coaching is for people who value attention to detail, consistency, and being coached - not just given a program.
I have built my reputation on long-term client relationships, with many training alongside me for years. My approach prioritises trust, sustainability, and real progress - without over training or quick fixes.
From first-time lifters to experienced runners and ultra-athletes, I help clients build strength, confidence, and resilience that carries over into both everyday life and performance.
In a world of high-volume, fast-paced fitness, this is a more considered approach - where quality coaching, individual support, and lasting results come first.
For those needing flexibility, consider my online coaching, it has the same level of structure, personalisation, and accountability - so you can train on your schedule without compromising on guidance.
Ready to get started?
Fill out the enquiry form to reserve your spot, and I’ll be in touch to chat about your goals.
WHAT I OFFER
Strength Coaching
Face-to-face, tailored strength sessions led by an expert coach. Each session is designed to help you build a solid foundation and develop excellent technique, ensuring you progress safely and effectively in your fitness journey.
Semi-Private Training
I offer group sessions that focus on strength, stability, and functional training. These classes are held in a comfortable and welcoming studio environment, making it easy to stay motivated while training alongside others who share your goals.
Online Strength
Online Strength coaching provides unmatched convenience, whether your goal is building strength or training for ultra-distance running. With access to your personalised online program, you’ll benefit from ongoing accountability and support, helping you unlock your full potential wherever you are.
TESTIMONIALS
Andrew Norman
I like the confidence I get from online training knowing it can easily adjust to the inevitable disruptions and changes to my schedule, along with the general feeling of improved wellbeing that comes from being accountable and committed to self-improvement.
The structure of the sessions is energising without being fatiguing. I noticed additional power and more stability in my running within weeks. I’d absolutely recommend Kat’s training to anyone.
Steve White
I started training with Kat at Base2Summit to achieve my goal of a new PB in a marathon.
Kat is extremely knowledgeable in both the physical and mental aspects of running. My online running program is well structured with a great variety of sessions. The program kept me accountable whilst maintaining flexibility of the sessions if they needed to be moved due to work commitments. My endurance and strength improved significantly from the online running program and the 1 on 1 Strength sessions I had in the studio.
Kat's coaching and constant encouragement kept me highly motivated, and ultimately helped me achieve my new PB in the marathon. I highly recommend her coaching to all looking to achieve specific running goals or for maintaining general fitness.
John McCourt
Kat has been my trainer for around 10 years. During this time she has been a great help with general fitness and diet as well as helping me achieve some specific goals including glacier trekking in the Swiss Alps and hiking the Kokoda Track..
Kat has always looked to improve her knowledge and skills which has allowed her to offer new ideas and training methods.
Linda H, Rose Park. SA.
Kat is an outstanding personal trainer who achieves great results for her clients no matter what their goals are. She is well balanced, having an extensive knowledge of exercise, training safely and with great technique, plus she is a qualified Metabolic Precision Transformation Specialist for those who want a complete exercise and nutrition program. I have trained with Kat for over 3 years, and have done two MP programs with her. She is a lovely person, but doesn't let you get away with anything! I have achieved significant results towards my fitness and well being goals and have learnt knowledge that I will carry with me for the rest of my life. I would highly recommend Kat as a PT and Metabolic Precision Transformation Specialist.
Andrew Norman
I like the confidence I get from online training knowing it can easily adjust to the inevitable disruptions and changes to my schedule, along with the general feeling of improved wellbeing that comes from being accountable and committed to self-improvement.
The structure of the sessions is energising without being fatiguing. I noticed additional power and more stability in my running within weeks. I’d absolutely recommend Kat’s training to anyone.
Beth
I had never done any strength training before I joined the trail girls with Kat! I was getting ready for Heysen 105 and then the big 200 miler for Irrational South.
I was really scared at first but Kat took the time to demonstrate everything and build my strength for the specific events. She also was very understanding of my life/ work schedule and helped me with home based programs for the times I missed the gym sessions. I am so glad I started, I achieved my event goals and am now ready for the next! I can highly recommend Kat for helping you achieve those dreams!
Sonia Cant
Kat has been my personal trainer for over three years. She has been my fitness and metabolic precision mentor. Kat has always been a great motivator in keeping my focus on maintaining a holistic approach to fitness and diet. Kat is forever reliable and approachable to me as a client who has a very physical job and high stress level and I believe my fitness regime provided by Kat is my secret weapon to successfully living life.
Heather
Katherine is an exceptional trainer with an eagle eye for technique, no shortcuts and a kind and generous spirit. She makes you achieve more than you ever thought possible, and it’s fun.
Dr. Tom Suszko
I found training under Katherine's guidance both stimulating and effective.
She sustained interest by creating great variety in the exercises offered in each session.
I began training with Katherine as part of preparation for a major mountaineering expedition then continued on my return to maintain my fitness.
Katherine's approach was always engaging, intelligent and enthusiastic.
I would confidently recommend Katherine as a highly skilled personal trainer.
Sarah
Kat Marks is an extremely professional, experienced and caring trainer. In the 3 years I've been with Kat, my strength, agility, trail running ability and mental health have all improved significantly.
I cannot recommend Kat and Base 2 Summit highly enough.
Lindy Brooke & Phil Barnett
Kat has been our personal trainer for over 10 years and she is just the best! Kat’s approach is highly professional with individually tailored programs to meet our goals and needs. Our sessions incorporate strength, balance, and cardio to complement our life’s activities. Kat’s programs helped us prepare for hiking the 1200km of the Heysen trail. As we age into our 60’s and 70’s she keeps us strong, confident, and motivated and is an integral part of our health regime. We can’t recommend her services enough.
Moira and Steve
Kat possesses a good understanding of the specific needs of older individuals looking to improve their strength and overall fitness. She always demonstrates empathy, patience, and an unwavering commitment to our success.
Her positive energy and motivational spirit helps push us to surpass our own expectations. Her broad knowledge in physiology and nutrition which she takes the time to discuss with us adds to the wholistic approach to our wellness and has positively impacted our overall health.
We believe if you’re an older or younger individual seeking a trainer who will inspire, guide, and challenge you toward a more vibrant healthier lifestyle Kat is the PT for you.
Mark Berry 24fit National Development Manager
Longevity is true testament of a professional Personal Trainer. Kat has been at 24fit for 7 years, with a combined 9 years personal training experience. It is her dedication to each and every client and their individual fitness goals that has resulted in her success. Give Kat a ring if you are looking for a results driven compassionate fitness specialist.
Rob Creasey
I started strength training seriously with Katherine Marks from Base2Summit in 2019 after suffering an injury during an ultra-marathon, causing me to have to hike out the last third of the event. I realised I was just running and not doing anything else for injury prevention or maintaining overall movement fitness. For me, there is only so much you can do on your own without be answerable or tested to make sure it is being done correctly and effectively.
I have also extended this with Kat in 2024, with run coaching to get my run fitness up,
variation of terrain, effective pacing, run nutrition and getting in the right head space for the long events with the goal of enjoying the event and recovering well. The proof of this, for me, came when I improved my 55 km ultra distance by some 3 hours over what I had done prior, rather than by grinding trying to work it out on my own.
I put this solely down to the coaching and strength training with Kat. She had set me a
target I wasn’t sure I would achieve and she was spot on.
Kat is extremely knowledgeable, investigative and sharing of her knowledge to get the best out of a person. She will tailor the training to suit to individual. She has actually done what she is teaching and therefore she is extremely effective, driven and motivating.
David
Kat has been my personal trainer for nearly five years. During this time, she has been fantastic in improving my general level of fitness. Her passion for the assisting and encouraging her clients is unsurpassed. She is extremely focussed and aims for each person working with her to achieve to the best of their potential. I have undertaken several courses with Kat and have been very impressed with her knowledge of weight progression, nutrition and goal setting. Kat has also worked very closely with me on rehabilitation following two surgeries. The support and encouragement combined with her willingness to work with other professionals has greatly assisted in my recovery. I would highly recommend Kat as a Personal Trainer to anyone who is looking for the assistance.
Romeo
Kathy has helped me for some years. She has been an excellent example for me. I enjoy her workouts and knowledge she has imparted to me. I particularly enjoy her MetaFit sessions, they are quick and effective.
