Marathon is a city in the Florida Keys composed of many unique neighborhoods. Located on the east side of the island of Key Colony, it is known for its fishing, boating, diving, and other marine activities. The city also offers an array of golf courses, shopping, and dining options. The city is home to the seventh-longest bridge and the Marathon Jetty, both of which span over Routes and U.S. 1. For those looking for a more serene atmosphere, the Crane Point Hammock Nature Center offers trails, boardwalks, and a butterfly garden. The Marathon Community Park, located on Knights Key Boulevard, is a great place for picnics, fishing, swimming, and other outdoor activities. The city also features museums, galleries, and other historical sites such as the Dolphin Research Center and the Turtle Hospital. Finally, visitors looking for a bit of relaxation can enjoy the beaches that line the Florida Keys.