Shiromaru Dam

“Japan's longest fish ladder spirals deep under a Tokyo dam.”

Beautiful Scenery
Shiromaru Dam
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Shiromaru Dam (yes, there is a dam in Tokyo!), is located in the Okutama area in western Tokyo. On top of being in the beautiful mountainous area of Okutama in west Tokyo, Shiromaru Dam has a very unique feature: a fish ladder! This 1082.6ft (330m) fish ladder helps to migrate trout to get upstream in spectacular fashion! This fish ladder is also the longest of any fish ladders found in Japan!

Spot NameShiromaru Dam
Postal Code〒198-0107
AddressShiromaru, Okutama-machi, Nishitama-gun
Telephone Number0428-83-2111
Official URLhttps://www.kotsu.metro.tokyo.jp/other/hatsuden/shiromaru_1.html
KeywordsBeautiful Scenery

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Frequently asked questions

What is Shiromaru Dam?
Japan's longest fish ladder spirals deep under a Tokyo dam.
Where is Shiromaru Dam?
Shiromaru Dam is located at Shiromaru, Okutama-machi, Nishitama-gun.
Can I visit Shiromaru Dam with a local guide?
Yes. WOW U lists activities around Shiromaru Dam hosted by Locals, the local guides who live in the area.
What is WOW U?
WOW U is a booking platform that connects travellers directly with local guides in Japan, called Locals. You book, message your Locals host and pay on WOW U, and every experience can be reviewed afterwards. More than 6,100 Locals are registered on WOW U. Reviews left by travellers average 4.7 out of 5.