The "Marunouchi Illumination" is a wintertime tradition in the Marunouchi area that has been held for more than 20 years since its first event. The event centers on Marunouchi Nakadori Avenue, the main street of the Marunouchi area, which is lined with popular brand-name stores along its 1.2-km stretch. Approximately 820,000 LED bulbs will be attached to 286 street trees in the Marunouchi area, from the Tokyo Kotsu Kaikan in front of Yurakucho Station to Otemachi Naka-Dori Avenue, and all of them will light up simultaneously.
During the festival, the street and the entire town will be illuminated in a shimmering champagne-gold color, creating a truly magical atmosphere. This event is also environmentally friendly, and all the illuminations on Marunouchi Naka-Dori Avenue are powered by clean electricity generated from natural energy sources such as solar and wind power.