Personal Trainers and Instructors


Melissa Aldeborgh has over 20 years of fitness industry experience, and holds a personal training certification with American Sports & Fitness Association. In addition, she is certified in multiple group fitness forums, ICSA Kickboxing, Kettlebells and Les Mills programs. Melissa enjoys helping her clients to keep a balanced and active lifestyle by keeping them challenged and motivating them to surpass their mental and physical boundaries.

Melissa Clay has summered on Martha’s Vineyard her entire life and has lived here year-round for the past 20 years. Her enthusiasm for fitness, nutrition, the mechanics of the human body and helping others started in high school and has been growing ever since. Her certifications include the National Academy of Sports Medicine, Certified Behavior Change Specialist, and she is currently working on a nutrition certification with a focus on lifetime weight loss. Melissa is creative in her workout programs making sure to stay focused on her client’s goals by utilizing not only weights and machines, but also body weight. She loves to incorporate the outdoors and TRX and SAQ drills, capitalizing on what nature has to offer. Melissa also has experience in corrective/physical therapy training for stroke victims, spinal stenosis, poor posture and muscle imbalances. She has worked extensively with seniors on balance and strength, which is a rapidly growing adjunct to the training field. With 23 years of combined experience, she is excited to bring her passion to The Boathouse this summer!

Joe “K” Koroma, an elite trainer and fitness instructor, has excelled in the fitness industry for over 15 years. He is certified by the National Strength Professionals Association (NSPA), American Council of Exercise (ACE) & is a certified conditioning specialist. He started the company MaxFit, LLC, in 2004 and specializes in developing innovative fitness programs that help any person or group reach and maintain their maximum levels of fitness and overall health. He was the Master Trainer for Nike’s ½ Marathon Event and The Ebony Fitness Experience at the 2014 BET Awards. His cutting edge fitness sessions and classes incorporate strength training, cardiovascular conditioning, High Voltage Sports Training ™, yoga & Pilates.

Pete Upton became a personal trainer and coach because he enjoys helping people and couldn’t imagine any other way than through health and fitness. Understanding many people live with pain every day, he became a certified Z-Health movement specialist to help clients manage ailments. As well as being a Z-Health Practitioner he is PICO certified as a Poliquin Performance Specialist which allows for the most effective results for strength, conditioning and injury prevention.  Pete also specializes in, and has helped hundreds of clients through, improving posture, structural balance and designing personalized exercise programs which are the keys to success, and he loves doing it!

Brenda Wallis grew up on Long Island and has been living year round on the vineyard since 1992. She started teaching fitness classes 10 years ago as a sub for Indoor Cycling and gradually, as her confidence grew, her interest in teaching as a profession grew as well. She now teaches a variety of classes ranging from Indoor Cycling, BodyART, Strength/Core, Barre and Fusion. Her style of teaching is challenging, with a strong emphasis on alignment. Brenda incorporates all aspects of fitness into her classes including strength, cardio, flexibility and balance.

Sian Williams is originally from Manchester, England and moved to Martha’s Vineyard in 1988. Sian began her yoga teacher training certification with renowned teacher, Shiva Rea, and completed in the fall of 2008, certified by Yoga Alliance as a 200 hour RYT. Sian has been teaching yoga to kids ranging in age from 5 to 14 years old. She created Pandavine, Yoga for kids program, which has become a popular fixture on the Island.