Gudeulli is a coffee shop in the 419 Cafe Street area of Suyu-dong, Gangbuk-gu, Seoul, near the entrance to Bukhansan. It serves coffee, drinks, and bakery items, and its Gudeulli latte has a walnut taste with a subtle floral scent. The shop sits on a narrow, steep alley, and parking in front of the building is limited to about five or six cars. The interior is exposed concrete, so sound echoes inside.