Koka Ninja House

Kouka-ryu Ninjutsu Yashiki

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The only authentic ninja house still standing! Experience the history and life of the Koga ninjas. Full of hidden rooms and secret mechanisms.

Historic Sites
Castle

Tourist destination images of Koka Ninja House(1)

Tourist destination images of Koka Ninja House(2)

HighlightsThe only authentic ninja house still standing
Hidden rooms and mechanisms such as the 'don-den-gaeshi'
Valuable exhibits such as shuriken and scrolls
Sampling of the ninja's secret health tea, 'Kenpo-cha'
A place also visited by Harrison Ford

Basic Information

Address: 2331 Ryuhoji, Konan-cho, Koka City, Shiga Prefecture Search for tourist attractions in Shiga

Access: About a 5-minute taxi ride from Konan Station on the JR Kusatsu Line. Alternatively, it's approximately a 20-minute walk from the station. About a 3-minute drive from the Konan Interchange on the Shin-Meishin Expressway. Show route

Op.Hours: [Weekdays] 10:00 AM - 4:30 PM (Last admission 4:00 PM) [Weekends & Holidays] 9:30 AM - 5:00 PM (Last admission 4:30 PM)

Cld.Days: Every Wednesday, the 4th Thursday of the month, and New Year's holidays (December 27th - January 3rd)

Fee: Adults (Junior high school students and above): ¥750 (tax included) Children (Ages 3 and up): ¥550 (tax included)

INFO: Restrooms are available in front of the residence. If using the second parking lot, adjacent public restrooms are also available.

HP: http://www.kouka-ninjya.com/

Overview

The Koka Ninja House was built during the Genroku era as the residence of Mochizuki Izumo-no-kami, the head of the Koga-ryu Ninja Fifty-Three Families. Although it appears to be an ordinary Japanese house from the outside, the interior is equipped with various devices to deceive enemies and protect its inhabitants, such as 'don-den-gaeshi' (trick revolving doors), trapdoors, and hidden ladders and rooms. These mechanisms are invaluable in conveying the wisdom and ingenuity of the ninjas of that time to the present day. The house also displays numerous valuable items, such as the 'Koka-ryu Densho (Tiger Scroll),' which describes the secrets of Koga ninjutsu, as well as shuriken (throwing stars) and makibishi (caltrops), offering a glimpse into the lives of ninjas. The Koga ninjas were also well-versed in pharmacology, and the house offers samples and sales of 'Kenpo-cha,' a traditional ninja secret beverage passed down through generations. In 2019, it was additionally certified as one of the constituent cultural properties of the Japan Heritage site 'Ninja Village Iga and Koka - In Search of Real Ninjas.' Experience the world of ninjas who survived the warring states period at the Koka Ninja House.