Good running spot as well as cultural sight.
When you are in Tokyo, you sometimes miss the greens (not to mention salad which you also miss), but big park like Central Park in NY. Yoyogi Park is one of the big park that you could walk or run or just sit down on bench to drink coffee to enjoy the water and green. There is also Meiji Jingu Shrine in the park to visit. It’s just outside of Harajuku Station.