TENAFLY, NJ—A $26 million, two-year expansion of the Jewish Community Center (JCC) on the Palisades will add 22,000 square feet to the center, which has more than 10,000 members. As part of the project, the racquetball courts will be converted to multipurpose rooms for personal training and group exercise. The JCC will also improve its youth and senior lounges as well as its youth fitness facilities and enhance its fitness and recreation areas.