Coaches & Directors

We are here to support your needs. If your questions are related to workouts, meets, events, goal setting,and other swimming related needs, please contact one of the coaches. For Swim America Learn-to-Swim lessons please contact Nancy Knowles, the Program Director. For all questions related to administrative, such as dues, safety, or policy issues, click the "Policies" tab or please contact Andy or Nancy Knowles.

Coaching Staff

Percival A Knowles

President & CEO


Olympic swimmer and 6 time Olympic coach for The Bahamas. Level 5 Distinguished International Coach with ASCA. Swimmers include numerous medalists at all of the regional championships, finalist and medalists at PAN AM Games, finalists at SC World Championships and semi finalist at the Olympics.

Nancy C Knowles

Administrator and Program Director


Swim America Program Director. Level 2 coach with the American Swim Coaches Association. Certified Royal Life Saving Association and Surf Life Saving Association instructor.  Over 35 years of teaching/coaching experience.

Stephanie L Sands

Swim America Site Supervisor


ASCA Level 2 coach and Swim America Site Supervisor at St. Andrew’s School Pool. Stephanie runs the Learn-to-Swim programme at Summit Academcy and assists St. Andrew’s School with their primary school swim program. She offers private and semi-private lessons for children of all ages and adults. Stephanie attended her first ASCA World Coaches clinc in Las Vegas September 2008.

Lisa Jane Burn-Snow

Assistant Coach/Water Aerobics


Christina Gabrielle Messarra

Aqua Therapist


       Dr Christina Messarra is a Physiotherapist and the Facility Director of PROVIDENCE REHABILITATION CENTRE (PRC). After graduating with an degree in Physiotherapy from McGill University in Montreal in 1990, Christina went on to complete and MBA from the Ivey Business school, University of Western Ontario in London.  In 2003, Christina returned home to Nassau to open PRC, which has grown to become Nassau's premier Physiotherapy service Centre.

        In 2014 Christina graduated from the University of St Augustine for Health Sciences with a Doctoral degree in Physiotherapy practice focused on Pelvic Health rehabilitation. Educating patients on the role of the core muscles and rehabilitating the core muscles to function optimally in posture, gait and function and are her passion.

        In 2016 Christina collaborated with SWIFT SWIMMING to offer access to Aqua Physiotherapy services that combine Christina's expert understanding of the human body and her skills as an experienced Physiotherapist with her understanding of the physical properties of water to offer patients a gentle, effective approach to core strengthening, gait retraining and general strengthening. 

         Aqua Physiotherapy services are covered by ALL local insurance plans including NIB, Colina, Bahama Health, Atlantic Medical, Generali, BAF, and Bahamas First with a Doctor's referral and will benefit patients regardless of age or ability.  When illness, injury or disease affects your quality of life simply call PRC at 323-0121 for more information about how you can begin PRC's Aqua Physiotherapy services.