Hangang Summer Festival (or Hangang Mongttang Festival) is the largest riverside culture festival held annual, enjoyed by visitors and citizens of Seoul alike. Programs are organized by the Hangang Project Headquarters of the Seoul Metropolitan Government in cooperation with various civic organizations, transforming the Hangang River into a joy-filled playground. Activities found at the event grounds and participating organizations span a wide variety of sectors, including: camping, water leisure sports, concerts, film screenings, street festivals, cycling, paper boat racing, fire art, and traditional art performances.