The facility is based on the motif of the Fuuma Ninja, who are said to have supported the Hojo clan during the Warring States period, and allows visitors to learn about the history of the five generations of the Hojo clan and the Fuuma Ninja through hands-on experience.

This is Odawara City's largest festival to honor the Hojo clan, a set of feudal lords who reigned over the Kanto region for five generations for about 100 years during the Warring States Period, a time of fierce rivalry between the warriors, and who created a nation with the ideal of the well-being of its people. A total of 1,700 people parade in the city in a heroic procession of warriors, mainly modeled after the five successive lords of the Hojo clan, with the participation of local brass bands, the Ground Self-Defense Force, and other musical groups, as well as portable shrines and other town groups. In addition, there will be a firing performance by the Hojo Tepposhu and a performance by the Fuuma Ninjas in the streets.

Swords and armor are on display at Tokiwagimon. We also have a cosplay experience where you can transform into a samurai, princess, or ninja with our armor and kimono. Why not take a commemorative photo wearing armor, uchikake, or ninja costumes with Odawara Castle in the background? Adults (junior high students and above): 500 yen Children (elementary school students and younger): 300 yen

A base facility that distributes information on Odawara tourism and provides content for visitors to experience the traditional culture of the region. This facility also features various hands-on workshops, a café, museum store, bicycle rentals, and rental space. The building itself is made of Odawara cypress and Japanese cedar.Visitors can experience Odawara's traditions and culture through the “Odawara Chochin,” “Yosegi-zaiku,” “Kaisendon,” and a variety of other content that both adults and children will enjoy through same-day reception (no reservations required).

With a trunk circumference of 4.5 meters, it is the largest inumaki tree in Odawara City and is designated as a natural monument of the city. Out of all of the large trees in the Odawara Castle Ruins, this inumaki is the most magnificent in shape.