Florida's first swimming pool was built by Edison in the early 1900's. It was constructed of his Edison Portland Cement, which was also used to build the original Yankee Stadium. Edison had 40 patents in the development of his cement. The pool is as deep as seven feet, but was never used by Edison who did not believe in excercise. The pool is with in view of the Caloosahatchee River. Although the pool doesn't look very inviting on the cold windy day I visited, it must look great on those hot summer days. Compliments of the Edison Estate home page where in its disclaimer allowed all information to be copy and shared.