Head to Kiyotaki River and spend an afternoon strolling along the water's edge. There's something about being near a river that makes you feel calm and peaceful.
You'll soon see why this Kita Ward flowing body of water is visited by many travelers. If you're searching for other things to keep you busy, Nijō Castle, Ryoan-ji Temple, and Katsura Imperial Villa are in the area too. They won't take very long to get to from Kiyotaki River.