Over 600 cherry trees blossom in Sumida Park towards the end of March. The riverside park is one of the most famous hanami spots in the city, and many come armed with picnics and mats to sit under the trees and enjoy the season with friends. If you want to enjoy the cherry blossoms against the backdrop of Tokyo Skytree, there really is only one place! See here for a run-down of places to see the cherry blossoms in Tokyo.
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.