Inuyama Castle: Climbing One of Japan's Oldest Original Wooden Castle Towers

Inuyama Castle is one of only five castles in Japan with a keep (tenshu) designated as a National Treasure. It's a genuine wooden structure, with much of its timber dating back roughly 440 years — there are no elevators or modern conveniences here. Climbing the steep wooden staircase on your own feet, you'll see the same view the samurai lords once saw during Japan's Warring States period. It's a rare chance to experience an authentic Japanese castle. About 30 minutes by train from Nagoya, followed by a 20-minute walk through the old castle town, the keep awaits atop a small hill.

Inuyama Castle has been designated a National Treasure of Japan. This status is given by the Japanese government to buildings and artworks deemed so important that they must be preserved at all costs. Japan has hundreds of castles, but only five have keeps (tenshu) recognized as National Treasures — and Inuyama Castle is one of these five precious sites.

Many of Japan's castles were destroyed by war or fire and later rebuilt in concrete. Inuyama Castle is different: the original wooden building, constructed about 500 years ago, still stands today exactly as it was. Only 12 castles in all of Japan retain a genuine, original keep like this.

In 2021, researchers from Nagoya Institute of Technology and the Nara National Research Institute for Cultural Properties used tree-ring dating (dendrochronology) to determine that the timber used in Inuyama Castle was felled between 1585 and 1588. In other words, the pillars and floorboards you touch have existed for roughly 440 years. Stepping inside wooden architecture this old is a truly rare experience.

Inuyama Castle also goes by the name "Hakutei-jo" (White Emperor Castle). The nickname comes from its resemblance to a famous Chinese castle, with its white walls rising from a hill beside the river.

The keep of Inuyama Castle has four stories and stands about 24 meters tall. Because it sits atop a small hill, it gradually grows larger in view as you climb the approach — building excitement with every step as you near the castle at last.

The staircases inside the keep are extremely steep — about 60 degrees, nearly as vertical as a ladder. During the Warring States period, they were deliberately built this way to make it harder for enemies to storm the upper floors. Hold the handrail and take each step carefully.

From the first floor to the top, every staircase in the keep is this steep. Since you'll want both hands free while climbing, a small backpack or shoulder bag is more convenient than carrying items in your hands. There is no elevator.

Honmaru Plaza, spread out at the foot of the main keep, is a relaxing spot where visitors can enjoy the changing scenery of all four seasons. When we visited in autumn, vivid fall foliage beautifully framed the keep. Red benches are set up around the plaza, letting you rest while gazing up at the tower.

In spring, around 400 cherry trees bloom across Castle Hill, and in autumn the area is blanketed in fall colors. Taking in the seasonal scenery while gazing up at the keep is one of the charms of Inuyama Castle.

Stepping inside the keep, the first things that catch your eye are the well-worn wooden floors and thick pillars. You can feel the warmth of aged wood that has borne the marks of history over the years. The floor creaks with every step, giving a sense of traveling back through 440 years of time.

Suits of samurai armor are on display inside the keep, believed to be linked to the Naruse family, who served as lords of the castle during the Edo period. Looking at the armor lined up in glass cases, you can picture the samurai who once defended this castle.

On the first floor of the keep is a fascinating feature called the "ishiotoshi no ma" (stone-dropping room). Part of the floor opens and closes, allowing defenders to drop stones on enemy soldiers scaling the stone walls below. The information panel is written in both Japanese and English, making it easy for foreign visitors to understand.

Peering down through the ishi-otoshi (stone-dropping window), you can see the stone walls directly below. Realizing that defenders once attacked enemies from this very angle gives you a visceral sense of the castle's defensive design.

The biggest highlight of Inuyama Castle is the balcony (mawari-en) on the top floor. You can step outside and walk all the way around the castle, taking in a full 360-degree view. Inuyama Castle is one of only two castles in Japan—along with Kochi Castle—where visitors can access this kind of balcony, making it a truly rare experience.

The view of the Kiso River from the tenshu balcony is spectacular. Below stretches the river's blue surface, beyond it the townscape of Kakamigahara on the opposite bank, and further still a chain of distant mountains. When we visited in the late afternoon, the setting sun turned the water golden, creating a scene as beautiful as a painting.

Turn to look the other way, and you'll get a sweeping view of the Honmaru plaza, the old castle town, and the Nobi Plain beyond. On clear days you can see all the way to distant mountains, making it easy to understand the strategic importance of why the castle was built here.

Visiting at dusk is also highly recommended. As the sun sets behind the mountains, the Kiso River glows golden, creating a dreamlike scene. Last admission is at 16:30, so if you want to catch the sunset, it's best to arrive in the early afternoon.

Below are the admission fees and opening hours for Inuyama Castle.

• Adults: ¥550

• Elementary/junior high school students: ¥110

• Young children: Free

New rates starting March 2026: Admission is set to rise to ¥1,000 for adults and ¥200 for elementary/junior high school students. The increase will help fund cultural property preservation, including disaster-prevention upgrades to the main keep (tenshu).

Inuyama Castle Town Ticket: This combo ticket bundles a Meitetsu train pass with castle admission at a discounted price. See the article below for details.

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• Hours: 9:00 AM–5:00 PM (last admission 4:30 PM)

• Closed: December 29–31

During cherry blossom season and Golden Week, hours may be extended to 8:30 AM–5:30 PM.

Credit cards are accepted at the ticket counter, so you don't need to carry cash.

Pamphlets about Inuyama Castle are available at the entrance, including multilingual versions in English, Chinese, Korean, and more.

Inuyama Castle is a popular tourist spot, so it can get crowded depending on the season and time of day. Here are some tips for a comfortable visit.

• Weekends and holidays

• Cherry blossom season (late March to early April)

• Autumn foliage season (November)

• Golden Week and Silver Week holidays

On crowded days, the wait to enter the main keep (tenshu) can be one to two hours, and during long holiday periods it can exceed three hours.

The best time to visit is right at opening, 9:00 a.m. Crowds start building after 10:00 a.m., with the busiest period between noon and 3:00 p.m. Weekdays tend to be noticeably smoother for visiting.

You can check real-time wait times on Inuyama Castle's official website. There's no reservation system, so during busy periods you'll need to line up at the keep's entrance.

Here's a rough guide to how much time to allow for visiting Inuyama Castle.

• Inuyama Castle only: 30 minutes to 1 hour

• Inuyama Castle + castle town: 2 to 3 hours

• Inuyama Castle + castle town + nearby spots: half a day to a full day

During busy periods, be sure to factor in wait times when planning. If you also want to enjoy food-hopping in the castle town, allow 3 to 4 hours.

The most convenient way to reach Inuyama Castle is by train. From Nagoya Station, take the Meitetsu Inuyama Line (Limited Express or μSKY) to Inuyama Station, about 25 minutes. From Inuyama Station, it's a 20-minute walk to the castle.

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We recommend the route via the west exit of Inuyama Station, about a 20-minute walk. Exiting the station, turn right at the Honmachi intersection and head straight along "Honmachi-dori." Enjoy the atmospheric streets of the castle town, which still retain the charm of the Edo period, while stopping at food stalls and cafés along the way to the castle.

The path is flat and easy to follow, so there's no risk of getting lost. Along the way, you'll spot the red torii gate of Sanko Inari Shrine, marking the approach to Inuyama Castle.

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It's about a 5-minute taxi ride from the west exit of Inuyama Station. A taxi is a convenient option for those with heavy luggage or mobility concerns. We also recommend exploring the castle town along with Inuyama Castle.

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• Official name: Inuyama Castle (National Treasure)

• Address: 65-2 Inuyama-Kitakoken, Inuyama, Aichi Prefecture

• Phone: 0568-61-1711

• Hours: 9:00 AM–5:00 PM (last entry 4:30 PM)

• Closed: December 29–31

• Admission: 550 yen for adults (1,000 yen for adults starting March 2026)

• Official website: Inuyama Castle

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