Lake Hopatcong is the largest freshwater lake in New Jersey, covering approximately 2,500 acres. Located in Sussex County and Morris County, it is a popular destination for boating, fishing, and swimming. The lake has a maximum depth of about 50 feet and is home to various fish species, including bass and trout. Surrounded by several towns, including Hopatcong and Jefferson Township, Lake Hopatcong offers numerous recreational activities. The lake is also known for its scenic beauty, with parks and trails nearby, making it a favorite spot for nature lovers and outdoor enthusiasts.