City Island is a mile-long island in the Susquehanna River located in the heart of Harrisburg. It is home to FNB Park (Harrisburg Senators Baseball Stadium), the Harrisburg Beach Club, Water Golf Miniature Golf, the City Island Railroad, and the Pride of the Susquehanna Riverboat, which offers scenic river cruises. The island also features a walking trail, free playgrounds, and open fields, making it a perfect destination for family-friendly fun and outdoor recreation.