Deulkkotmaru sits on a hill next to the Rose Plaza on the south side of Olympic Park in Seoul. Cosmos and poppies are planted in themed sections on both sides of the slope, and a maru shelter in the form of a wondukkak stands at the top. In autumn yellow and orange hwangha cosmos bloom, and in early June 2025 poppies reached full bloom. The hill path is long, and the flowers are not always in full bloom depending on the season.