Welcome to Fitness with Marni
"My goal is to inspire people to live a fit and healthy lifestyle – no special tricks, gimmicks, or shortcuts. Be active, eat healthy, be honest with yourself, and be good to your body. You are worth it." - Marni
Personal Training


PaddleFit Water Fitness

About Me
Fitness with Marni offers one-on-one personal training, couples training, group training, corporate fitness and boot camps. We train you at your home, office or Pro-Fit Deer Park.
Join me for a Hot Yoga Boot Camp (YogaFlex Commack) or PaddleFit with Marni at HuntingtonSUP and Stony Brook Harbor Paddleboard.
Please check Group Fitness schedules at Pro-Fit AND NexCycle for Marni's weekly classes.
Facebook Feed
Contact Info
Areas Served
We serve Commack, Dix Hills, Deer Park, Melville, Huntington, Plainview, Syosset, Woodbury, Kings Park, Smithtown and Hauppauge. Travel outside these areas will be considered on an individual basis.





