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sakura at Edo castileThe area from Yasukuni Shrine to adjoining Chidorigafuchi Moat in Chiyoda-ku is, along with Ueno Park in Taito-ku, one of the most prestigious hanami (cherry blossom viewing) spot in Japan. (As for cherry blossom at Ueno Park, see the article on the Ueno Sakura Matsuri.)
From late March to early April, Chiyoda no Sakura Matsuri (千代田のさくらまつり) will be held at this area to enjoy the blooming cherry flowers.

Sakura at Yasukuni Shrine

Yasukuni Shrine, which was a shrine presided over by the Imperial Army and Navy until the end of WWII, is famous for its sakura (cherry) blossoms. The way these flowers bloom beautifully and then fall gracefully at once in a short period of time was favored by the military who thought it symbolized their destiny.

Shinmon Gate
Sakura at Yasukuni
Inside the gate
Sakura at Yasukuni
Shin'ike Garden
Sakura at Yasukuni
Peformance at noh stage
Sakura at Yasukuni
Yasukuni Jinja Shrine Official English website
[Inside Shin-mon Gate] 6AM-7PM May-Sep, -6PM Mar-Apr&Sep-Oct, -5PM Nov-Feb
3-1-1 Kudankita, Chiyoda-ku, Tokyo MAP
Area guide around this siteArticle on Yasukuni Shrine

Sakura along Chidorigafuchi Moat

Chidorigafuchi Moat is the moat on the northern side of Kitanomaru Park. One end of this moat is the Tayasumon Gate of the former Edo Castle. This gate is located across the street from the first Torii Gate of Yasukuni Shrine.
There's a passage named Chidorigafuchi-ryokudo running along side with the moat, and many cherry trees are planted there.

Tayasumon Gate
Sakura at Edo Castle
Chidorigafuchi Moat
Sakura at Edo Castle
Chidorigafuchi Moat at night
Sakura at Edo Castle
Sakura at Edo Castle

At night, cherry trees along Chidorigafuchi Moat will be fantastically illuminated, but it'll be very crowded.

Chidorigafuchi Moat from Kitanomaru Park
Sakura at Edo Castle
Sakura at Edo Castle

You can also see the cherry trees from inside Kitanomaru Park.

Kitanomaru Park
Sakura at Edo Castle
Kitanomaru Park
Kitanomaru-Koen, Chiyoda-ku, Tokyo MAP
Area guide around this siteArticle on Kitanomaru Park

Sakura along Hanzobori Moat

Daikanmachidori Street
Daikanmachidori

At the southern end of Chidorigafuchi Moat there's a street called Daikanmachidori, which also divides Kitanomaru Park and the Imperial Palace. Cherry trees are planted along this street also, though they are not predominant cherry cultivar Somei-yoshino but mostly wild species called Yama-zakura and Oshima-zakura.

Chidorigafuchi Koen
Chidorigafuchi Koen
Chidorigafuchi Koen at night
Chidorigafuchi Koen

If you cross the Daikanmachidori Street and go further south, there is a path called Chidorigafuchi Koen next to Hanzobori Moat. There are some more cherry trees here until you reach the Hanzomon Gate. There will be people partying under the flowers in this area.