Cafe Reoseul is a small cafe near the back gate of Children's Grand Park and Achasan, serving iced matcha latte and ssuk latte. From its fourth-floor rooftop, guests look down over the park's walking paths and the surrounding forest, and art books are placed inside. An exit leads directly to the Children's Grand Park walking path, so visitors can stop by right after a walk. Rooftop access is limited depending on fine dust or weather, and indoor seating is limited.