Hopatcong State Park is a pet-friendly recreation area in Landing, New Jersey. This 9-mile park contains 2,500 acres of freshwater in the form of Lake Hopatcong, a popular spot for fishing, boating, and swimming. Unfortunately, pets are not allowed on the beach at this state park. Dogs are welcome to join their owners on a leash, as long as all mess is cleaned up after them. You can access the park every day of the week from 8am to 8pm.