Since 1950, the neon lights outside the Waterford Rolladium have beckoned skaters to the brightly colored rink. Inside, DJs spin top-40 hits and oldies from a towering DJ booth as guests circle the boards beneath a shimmering disco ball. The snack bar refuels patrons, and a game room gives respite from figure eights or shooting the moon by attempting to throw a skate at it. To hone eight-wheeled maneuvers, professional instructors lead lessons and classes, teaching beginners as well as those interested in competing in figure or speed skating.