Trolley Parks were born when trolley companies began adding picnic areas, playgrounds and carousels to the ends of lines to increase weekend ridership. In the early 1900s, there were more than 1,000 trolley parks, but today, only a dozen remain. TROLLEY PARK: GREAT LAKES is a half-hour documentary that reveals the rich histories of two iconic, surviving trolley parks located on the shores of the Great Lakes: Seabreeze Park and Waldameer Park. Seabreeze Park is located near Rochester, N.Y., and has been welcoming guests on the shores of Lake Ontario since 1879. Waldameer Park in Erie, Penn., evolved from a popular picnic ground in 1896 to a beloved amusement park on Lake Erie. The documentary shines a spotlight on the long-time family ownership of both parks that has spanned generations.