This reservoir drew and supplied water to the Yokosuka Arsenal.
It was the first waterworks established in the city
and is still being used to this day.
No. 2 Sea Fort
A “kaiho,” or sea fort, refers to an artificial island constructed to serve as a gun battery. The guns from the 1870s to late 1920s had a limited firing range from land. In order to protect the waters that were out of range, three sea forts were constructed in Tokyo Bay. The No. 2 Sea Fort is currently open to tours.
To everyone who is considering visiting Yokosuka
Please be aware of the prevention of infection based on the "new lifestyle" such as wearing a mask and washing your hands thoroughly.
Information Basic information
2433 Subata, Futtsu, Futtsu, Chiba |
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Only Accessible via Guided Tour |
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Only Accessible via Guided Tour |
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Only Accessible via Guided Tour |
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Only Accessible via Guided Tour |
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Pay Parking Available Nearby |
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046-825-5401 Seafort of Tokyo Bay Tourism Organization (10:00～16:00, excluding weekends and holidays) |
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Sarushima
Chiyogasaki Gun Battery Site
Hashirimizu Lower Gun Battery Site
