124.Shinagawa Batteries Part3

The ruins of Shinagawa Batteries are very useful for telling people about what happened in the past. Visual historical items are significantly better than only records or explanation boards.

Features

Looking around N0.3 Battery Ruins

The ruins of the No.3 Battery as the Daiba Park is connected to the seaside by a marine walkway. The walkway was added when the park was established, that means the battery had originally been isolated. As you get close to the battery, you will see its characteristic stone walls using the Hanedashi system. The system refers to all the stones on the top row are layered to prevent enemies from invading, which emulated European castles. This system is rarely seen in other Japanese castles only in Goryokaku, Tatsuoka Castle and Hitoyoshi Castle which were built or renovated at the end of the Edo Period. In fact, this is the only spot where you can see them close by because it is prohibited for visitors to approach the stone walls from the other sides.

The aerial photo of the No.3 Battery

The marine walkway to the park
The Hanedashi system of the No.3 Battery
You can’t approach other stone walls of the battery in other places
The Hanedashi system of Goryokaku

You can land at the battery by using steps like boarding a ship. You can next see a close view of the battery. It is a large square with one side being 160m long and its perimeter is higher than the center. There are few remaining original items, so some visitors might not notice that it is a ruin without the knowledge of its history. If you walk on the perimeter which is made with earthen walls from the entrance, the view is so nice. You can see Odaiba Seaside Park on the left, the Rainbow Bridge and the No.6 Battery on the right, and Tokyo Bay ahead.

You can land the battery by using these steps
The close view of the battery
Walking on the earthen walls of the perimeter
The view of Tokyo Bay ahead
The No.6 Battery on the left and the Rainbow Bridge on the right

Ruins regarding Guns

There are two imitations of gun platforms on one side of the perimeter opposite the entrance. However, they are not actually real and should not be considered even as replicas, according to historians. In addition, there were thick and long earthen protective walls called “breastworks” in front of cannons, but they seem to have collapsed. There were also earthen side walls dividing the canons to protect gunners from blasts, but were removed after the battery being abolished. This side was definitely the front line against enemies.

The two imitations of gun platforms
The protective walls around the guns have been lost

The ruins of the gun powder magazines are facing downward inside the front side walls, which are surrounded by earthen banks. There was the building for the magazine inside the banks, but it was demolished. There is now a stone-made item like a cocking stove instead, but it is not original for the battery. In addition, the banks are partially supported by stone walls which were built to recover them from the damage of the Great Kanto Earthquake of 1923.

The ruins of the gun powder magazines
The inside of the ruins
These stone walls were built after the earthquake

The ruins of the ammunition chambers are at other sides. The chambers were solidly built with a stone hut and wooden racks deep in the earthen walls. This was because ammunition was the most dangerous item in the battery, which might have caused accidents or explosions. We can now see the stone hut ruins behind earthen mounds around which were added later than when the battery was active, maybe for preservation.

One of the ruins of the ammunition chambers

Ruins of Pier and Barrack

In the flat central part of the battery, there are only the stone foundations of the barrack. The barrack was a simple wooden building with no baths for the warriors to rest in. They would escape from the barrack if a battle happened before it would be burned.

The central part of the battery
The ruins of the battery

The ruins of the pier are at the next corner to the current entrance. Visitors can not enter it, but only see it from the inside. The concreted part was worked in the later period, which might have been used when the park was developed.

The ruins of the pier
You can’t enter the pier

There are also remaining earthen walls in front of the pier, which is called “Ichimonji-tsutsumi” (meaning the bank like the Chinese letter for one which is a horizontal line). This structure was made to ensure visitors could not see inside and the defenders could protect the battery from enemies’ attacks from the tier as the original entrance.

The remaining earthen walls called Ichimonji-tsutsumi

My Impression

I think the ruins of Shinagawa Batteries are very useful for telling people about what happened in the past. Visual historical items are significantly better than only records or explanation boards. The waterfront area of Tokyo has been very important for the economy of the whole country. All the batteries ruins could have been removed. The decision of Tokyo Metropolitan which owns the ruins was so great. Now, just one thing, I would like the government to replace the imitation of gun platforms at the site with realistic replicas to make visitors better understand what the battery would have looked like.

The two imitations of gun platforms on the No.3 Battery

That’s all. Thank you.
Back to “Shinagawa Batteries Part1”
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124.Shinagawa Batteries Part2

The battery is basically a flat structure to avoid being targeted from enemies’ guns and cannons, so visitors can not easily recognize its whole view. That’s why I recommend seeing the bird’s eye view before or after your visitation.

Later History

The later lives of the Shinagawa batteries have been mixed.
The No.1 and 5 Batteries have been engulfed by landfills.
The No.2 and No.7 (which was left because of the canceled construction) have been removed due to the convenience of transportation.
The No.4 (same as No.7) was sold to the private sector before being used for the ground of a dock. The ground has finally become a redevelopmental area of the waterfront, called Tennoz Isle. The remaining stone walls of the No.4 Battery can be seen as the base of its boardwalk.
The No.3 and No.6 are the last remaining historical sites. They were designated as a National Historic Site in 1926 and the No.3 Battery was opened as the Daiba Park in 1928.

Shinagawa Batteries drawn in a Ukiyoe-painting called the illustration of a steam locomotive at the seaside below Yatsuyama Mountain in Tokyo, attributed to Hiroshige Utagawa the third, in the Meiji Era, exhibited by Tokyo Metropolitan Library, The No.2 Battery was used as a lighthouse

The aerial photo around the batteries around 1945 to 1950

The aerial photo around the batteries around 1975

The Tennoz Isle
The boardwalk of Tennoz Isle
The stone walls of the No.4 Battery support the boardwalk

How to get There

Currently, there are two remaining batteries, No.3 and No.6 out of the five completed ones as mentioned above. In addition, only the ruins of the No.3 Battery are open to the public as a park. If you want to visit the No.3 battery ruins, which has now become Daiba Park, it takes about 10 minutes on foot from Odaibakaihinkoen Station on the Yurikamome line.

Odaibakaihinkoen Station

Walking from Tamachi Station

However, in order to look over the whole view of the two ruins (No.3 and No.6), try this route.
Get out of the train at Tamachi station on the JR Yamanote Line. Exit from the east entrance of the station. Go along Nagisa street for the time being. You can see the Rainbow Bridge which has promenades on both sides (north and south).

The east entrance of Tamachi Station
The Nagisa street
Going along the street
You can see the Rainbow Bridge

Get in the Shibaura entrance of the bridge and go up using the elevator. Select the south route to see the ruins to the south. If you go straight through the promenade, you will first see the whole view of the No.6 Battery.

The Shibaura entrance of the bridge
The entrance to the promenade
In the elevator
The south route

No.6 Battery like Birds’ Paradise

The battery is still isolated in the Tokyo Bay, being left as it has been to keep its original condition as much as possible though the canons and relative facilities were already removed. That’s why it looks as if it was during the first sight. However, if you look at it carefully, it is all covered with trees with uncountable number of birds gathering. According to a historian who visited it with permission from the government, it smells very bad and some structures collapsed naturally. It might have just become the birds’ paradise, so we may need to re-consider how to preserve it.

Getting close to the No.6 Battery
The No.6 Battery
birds are gathering among the trees
Passing by the No.6 Battery

Great View of No.3 Battery

When the promenade goes down with moderate slope, you will be near the park and the view of the No.3 Battery is becoming bigger and bigger. At this point, you will be facing the pier of the battery, it is the biggest one and extremely amazing! It is really a bird’s eye view. It also looks very much better than the No.6 in my opinion. The battery is basically a flat structure to avoid being targeted from enemies’ guns and cannons, so visitors can not easily recognize its whole view. That’s why I recommend seeing the bird’s eye view before or after your visitation.

Getting close to the No.3 Battery
The great view of the No.3 Battery right in front
The signpost of the Shinagawa Batteries at the edge
The stone walls surrounding the battery

To be continued in “Shinagawa Batteries Part3”
Back to “Shinagawa Batteries Part1”

162.Izushi Castle/Arikoyama Castle Part2

There is only the rest station and the signboard on the main enclosure of Arikoyama Castle. However, the view from the top, about 300m above from the foot, is really breath taking view! The stone walls of the enclosure are what you saw from the foot.

Features

Going to Arikoyama Castle Ruins through Shrine Approach

There are two castle ruins in the Izushi area as mentioned in the previous section, which are Izushi and Arikoyama Castles. The latter is older than the former, so I will first describe how to visit Arikoyama Castle Ruins in this article. The entrance to the ruins is now also that to Arikoyama Inari Shrine which is located at the highest of Izushi Castle Ruins. Therefore, you will climb the stone steps of the approach from the foot of the mountain to the shrine though many of its red shrine gates.

The approach to Arikoyama Inari Shrine

The map around the castle

You will also see several tiered enclosures of Izushi Castle with great stone walls and some restored buildings. The trail to the top starts from the point above the shrine building, so you need to prepare for hiking and something to keep you safe from wild animals (a bear bell or radio).

You can cee the Main Enclosure in the back and the Second Enclosure of Izushi Castle on the right
Arikoyama Inari Shrine
The starting poing ot the trail
Please beware of wild animals

Steep Slopes as Natural Hazzard

The trail is very steep and goes straight on a ridge of the mountain, which was a natural hazard of the castle. It gets a little flatter on the way, but zigzags and then becomes narrow over an earthen ditch instead. They are perhaps ruins of an artificial defensive gateway.

The steep slopes on the ridge
The spot where the trail is zigzagging
The narrow earthen bridge crossing the ditch
The ditch seen from above

After that, you will go on the steep trail again, which may be too tough for some castle visitors. However, you will eventually reach around the top area and the route turns right to go around. The castle ruins are made of soil so far, but you will see some remaining stone walls around. This is probably because there is the Well Enclosure below the trail, so the walls were built to protect the well from collapsing or being buried.

The trail becomes very steep again
The trail turns right and becomes flat
There is the Well Enclosure below the trail
The remaining stone walls above the well

Six tiered Enclosures on Top

The trail turns left and go up again to the main portion of the castle on the top. The portion has six tiered enclosures which are all surrounded by stone walls using natural or roughly processed stones. That means, these stone walls are an early example of those for castles, which were probably built by Takatora Todo.

The map of the main portion

Climbing to the main portion of the castle
You can see the stone walls of the main portion

In addition, if you go straight on the branched trail, you will get to the quarry for the stones.

You can get to the quarry of you go straight at division point
The ruins of the quarry

The enclosures are in line from the sixth enclosure on the bottom to the main enclosure on the top. Many of their stone walls were covered by wire nets to avoid from collapsing.

The stone walls of the sixth enclosure
The fifth enclosure on the left and the sixth enclosure on the right

There is only the rest station and the signboard on the main enclosure. However, the view of the Izushi area from the top, about 300m above from the foot, is really breath-taking view! The stone walls of the enclosure are what you saw from the foot.

Going from the second enclosure to the main enclosure
The top of the enclosure
A view from the enclosure
The stone walls of the enclosure

Very spacious Senjousiki Enclosure for top area

The Senjoshiki Enclosure is next to the main portion, which is separated by a huge artificial ditch. You can go there by passing the top of the forth enclosure. The enclosure is mostly made of soil, but very spacious for the top area of the mountain which was used as the lord’s residence or a station for large troops.

The path to the Senjoshiki Enclosure goes from the top of the fourth enclosure, the stone walls beide the path are the third enclosure’s
The huge ditch dividing the main and the Senjoshiki Enclosures
The top of the Senjoshiki Enclosure
The main enclosure seen from the Senjoshiki Enclosure

To be continued in “Izushi Castle/Arikoyama Castle Part3”
Back to “Izushi Castle/Arikoyama Castle Part1”