Official

Among them,
There is a description of "Cannon gun installation in the southern corner of the late Tokugawa shogunate period".

Hamarikyu Onshi Garden in late Tokugawa shogunate,
As one of the Odaiba, it played a part in the sea defense.

The outer circumference of the garden has been built since the Edo period.
Since a cannon will be installed, it seems that a stone wall has been needed as a new base above it.

There is a trace that seems to be part of a new stone wall,
Unfortunately, it cannot be seen from within Hamarikyu Onshi Garden.

But...

(I'm sorry that it's a little hard to see.)

This photo shows the southern corner of Hamarikyu Onshi Garden from a ship arriving at the pier at Takeshiba Waters.
The aim is immediately after arriving and departing at Waters Takeshiba.

A white pole on the stone wall of the water? There are some lined up, but on the other side, you can see a lower stone wall.
This seems to be the stone wall when the cannons were installed.
In summer, vegetation grows thick and invisible at all, but you can see it at this time.

Regarding the use of the ship,
There are multiple shipping companies that depart and arrive at Waters Takeshiba, and you will choose according to your destination.
Please note that you cannot see this stone wall from the ship arriving at Hamarikyu Onshi Garden.
Currently, there are no flights that can be boarded from Hamarikyu Onshi Garden.

If you want to see the stone wall, there are regular flights and you can get out on the upper deck.
"Tokyo Waterside Line" is recommended.

It's a bit cold, but now a lot of waterbirds will welcome you.
After preparing binoculars etc., I think you can enjoy it more when you board.

Yoshinobu Tokugawa, the fifteenth shogun of Tokugawa, returned to Edo during the battle of Toba Fushimi in late Tokugawa shogunate.
He landed from Hamarikyu Onshi Garden (at that time it was called Hamagoden).
How did you feel about the cannon?
I think it's great to look back on that era and look at Ishigaki.

Hamarikyu Onshi Garden

Location
Hamarikyuteien, Chuo-ku, Tokyo

[Opening hours]
9 a.m. to 5 p.m.
(Entry until 4:30 pm)