Hike Mount Takao (599m)

Mount Takao claims the title of Japan's most climbed mountain, drawing 2.7 million hikers annually. Located just one hour from Shinjuku station via train, it offers eight hiking trails ranging from a quick 40-minute ascent to a two-hour round trip, with a cable car option for easier access. The summit provides stunning Tokyo city views, and best of all, entry is free year-round. The average hiker completes the easier trails faster than typical urban walks, making it a practical choice.