Ttukseom Hangang Park Gangbyeon Nadeulmok is an underground passage between Jamsil Bridge and Jamsil Railway Bridge that connects Hangang Park with Guui-dong. It has benches, shaded picnic areas, drinking fountains, and exercise equipment, with separate lanes for bicycles and pedestrians. A slope at the back leads up to the Hangang Park walking path, where the night view includes Lotte World Tower and Line 2 trains passing by. Residents use the riverside spot for resting or exercising.