Walk through the northern part of real-life Iwabitsu Castle Ruins, an officially designated historical site, with a puzzle-solving ninja book. With your smartphone and earphones, learn about the Agatsuma Sanada Ninja and other parts of ninja culture, complete missions, find hints, and solve puzzles. An audio guide with a GPS will lead you as you walk in this new, mysterious, and fun form of ninja sound entertainment. Many of the Agatsuma Sanada Ninja will appear. It is narrated by the fourth Gyokushusai Tamada, the creator of Sanada Ten Braves. The story comes in Japanese and English and is told by a Japanese storyteller who can use six languages. It takes about one hour.
Business days: Saturdays, Sunday, and national holidays. It may be canceled due to weather.

Closed: Weekdays and year end and New Year holidays
Price: 2,200 yen per group
The price covers: ninja costume and a discount coupon to enter Iwabitsu Sanada Ninja Museum
Required time: 90 minutes
Capacity: 10 people