To mark the arrival of the crisp autumn weather and Hangeul Day, the Seoul Metropolitan Government is rolling out a month of night-lit celebrations, live acoustic sets and outdoor activities along the Han River. Beginning Friday, the seasonal program will center around two signature riverfront venues: Hangang PlayPlace at Ttukseom Hangang Park and Gwangjin Bridge 8th Avenue, an observation deck suspended directly beneath a bridge over the water. The festivities launch on Hangang PlayPlace with a tribute to Hangeul Day, a holiday celebrating the creation of the Korean alphabet. Starting at 1 p.m., the complex will morph into an interactive Hangeul Playground. Visitors can join scavenger hunts for hidden letters, paint traditional magnet sets or craft mother-of-pearl bookmarked name tags. A riverfront reading lounge stocked with books on Korean culture will offer a quiet retreat, while the venue’s third floor will host back-to-back screenings of classic Korean films, including the iconic war drama "TaeGukGi." The celebration extends late into the night. Following the daytime festivities