Bingsu is a popular Korean dessert drink that is perfect for cooling down on a hot day in Seoul. It is made with shaved ice and topped with a variety of sweet toppings, such as red bean paste, fruit, condensed milk, and ice cream. Bingsu comes in many flavors and variations, including traditional options like patbingsu (red bean bingsu) and modern twists like mango bingsu. It is a refreshing and indulgent treat that is loved by locals and tourists alike.