 Kennywood ceased to be served by streetcar when Mon Street Railways successor Pittsburgh Railways Company converted the route serving it, the lengthy #68 Duquesne-McKeesport line, to bus on September 15, 1958.Today, the park features a nostalgic atmosphere and is supported by a loyal fan base.As of December 2007, Kennywood Entertainment also ran Sandcastle Waterpark , which opened in 1989; Idlewild Park near Ligonier; Story Land , a children's theme park in Glen, New Hampshire; and Lake Compounce , New England's family theme park in Bristol, Connecticut, which is the oldest continuously operating amusement park in North America.