Annual, government-sponsored event held various places throughout the country. In Tokyo, the events area of Yoyogi Park plays host and sees various government bodies, NGOs, companies, and other organisations get together to promote environmental awareness and eco-friendly living in support of World Environment Day, which is on 5 June. The event runs from 11am to 5pm on Saturday and 10am to 5pm on Sunday.
Event details are taken from official sources whenever possible. It is always prudent to check the official event website before attending to make sure that there have not been any changes. If you know of an error in the calendar, then please let me know through the contact form.