Arisu, Seoul’s municipal tap water brand, is returning to the banks of the Han River for an autumn pop-up event designed to pair nighttime picnic culture with outdoor games, drinks, and illuminated city vistas. The “Beautiful Arisu” pop-up will begin Friday and run through Oct. 11 at Yeouido Hangang Park’s event plaza, operating from 5:30 p.m. to 9:30 p.m. every Friday, Saturday and Sunday. The second pop-up follows its first edition in June, which drew 7,410 visitors, with 93.4 percent of survey respondents reporting a more positive perception of Arisu, according to the Seoul Metropolitan Government. The new event is organized around an “autumn night picnic” theme and is intended to give office workers, evening walkers and other visitors more ways to spend time along the river after sunset. The pop-up features 10 areas, including game, cafe, healing and photo zones, along with information, video, DIY, promotional and voting areas and a Haechi art balloon. Visitors can play Arisu-themed games, while the cafe will offer coffee, corn silk tea and zero-sugar grapefruit drinks mad