Achasan Trail Entrance starts in Gwangjin-gu and is a gentle hiking course that beginners can climb. The mountain is rocky, so the path is comfortable while still offering a climb, and the Achasan Dulle-gil is clean. In the ecological park, a small fountain, the sound of falling water, and a rest area with lotus flowers are quiet. From the summit, the Hangang River and Lotte World Tower in Jamsil across the river are visible, and below the mountain there are many kalguksu, sujebi, and dubu-jip restaurants.