Hi Sherry,
Thank you so much for visiting the Disney Parks Moms Panel with your question. I recently returned from a stay at
Disney's Polynesian Villas & Bungalows. It is such a lush and beautiful resort! Of course, the proximity to the monorail and thus to both Magic Kingdom and Epcot is wonderful.
While there is not a fitness center at Disney's Polynesian Villas & Bungalows, guests of this resort are welcome to use the fitness center at
Disney's Grand Floridian Resort & Spa. This is a very quick walk, likely no more than 10 minutes from your deluxe studio or bungalow to the fitness center. In fact, it is quite close to the jogging path that connects Disney's Polynesian Villas & Bungalows and Disney's Grand Floridian Resort & Spa. You can also travel there by monorail.
I hope that this information is helpful for you, Sherry. Have a wonderful time planning your magical vacation, and please do let us know if you have any further questions!