One of San Diego's most beloved attractions turned 100 this year. The Giant Dipper roller coaster at Belmont Park carried its first riders on July 4, 1925.The amusement park is still bustling a century later, holding a lot of history within it.On Midday Edition, we sit down with the park's general manager to hear how they're celebrating 100 years.Guest:Steve Thomas, Belmont Park general manager