Tokyo is one of the world’s most rewarding cities to run because you can combine major landmarks, riverside scenery, and large parks in a single route—especially early in the morning when the air is cooler and the streets are calmer. Classic choices include the Imperial Palace loop for a quintessential “Tokyo runner” experience, the green paths around Yoyogi Park and Meiji Jingu, the Sumida River area linking Asakusa and Tokyo Skytree, the open waterfront around Odaiba and Tokyo Bay, and runner-friendly venues like Komazawa Olympic Park or the long Arakawa river path for steadier efforts.