20260410 – 20260505

The city-wide spring festival spanning Hangang riverside parks from April 10 to May 5. The headline Wonder Show on May 3 at Yeouido Hangang Park features Hwasa, LA POEM, and a grand orchestra set against the river backdrop — free admission. Across the festival period, K-pop showcases, cultural performances, flower installations, and night markets activate multiple park zones. The opening weekend at Ttukseom and Yeouido draws the largest crowds; weekday evenings are quieter. Full programme on the Seoul Metropolitan Government events site.