
Tsukui Castle Ruins
Explore the remnants of a Sengoku period mountain castle, featuring strategic moats and earthworks with rewarding summit views.

Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Pleasant weather for hiking

Tsukui Castle Ruins
Best Time
Pleasant weather for hiking

Highlights
Must-see attractions
Explore the remnants of a Sengoku period mountain castle, featuring strategic moats and earthworks with rewarding summit views.
"A rewarding hike through history, offering a glimpse into a strategic mountain castle's past."

Wear Sturdy Hiking Shoes
Trails can be steep and rugged. Proper footwear is essential for a safe and enjoyable climb. :athletic_shoe:
Choose Your Ascent Wisely
Otokozaka is faster, Onnazaka is gentler but can be tricky. Consider your fitness level. :walking:

Highlights
Discover the most iconic attractions and experiences

Horikiri (Man-made Moats)
Throughout the site
These impressive earthworks are the primary remnants, showcasing the strategic mountain castle design.

Otokozaka Trail
Ascent to the summit
A steeper but faster route to the top, recommended for those with light gear and good stamina.

Summit Observation Area
Castle summit
Enjoy panoramic views and a sense of history at the top, where a stone monument stands.
Plans like a pro.
Thinks like you
Planning Your Visit
Prepare for a Hike, Not a Castle Tour
Information is Key Before You Ascend
Best Times
Insider Tips
from TikTok, Instagram & Reddit
Wear Sturdy Hiking Shoes
Trails can be steep and rugged. Proper footwear is essential for a safe and enjoyable climb. :athletic_shoe:
Choose Your Ascent Wisely
Otokozaka is faster, Onnazaka is gentler but can be tricky. Consider your fitness level. :walking:
Bring Water and Snacks
Limited facilities on the mountain. Stay hydrated and fueled for your hike. :water_wave: :apple:
Check Park Center Info
Get maps and historical context before heading up the mountain. :information_desk:
Tips
from all over the internet
Wear Sturdy Hiking Shoes
Trails can be steep and rugged. Proper footwear is essential for a safe and enjoyable climb. :athletic_shoe:
Choose Your Ascent Wisely
Otokozaka is faster, Onnazaka is gentler but can be tricky. Consider your fitness level. :walking:
Bring Water and Snacks
Limited facilities on the mountain. Stay hydrated and fueled for your hike. :water_wave: :apple:
Check Park Center Info
Get maps and historical context before heading up the mountain. :information_desk:
Start Early
Avoid afternoon heat and potential hazards like falling branches. :sunrise:
What Travellers Say
Reviews Summary
Visitors appreciate Tsukui Castle Ruins for its historical significance as a Sengoku period mountain castle and the opportunity for a rewarding hike. The well-maintained trails and summit views are highlights, though some note the lack of intact structures and the need for clear English directions. It's a destination for those who enjoy exploring historical earthworks and a good trek.
"Would be great if had directions and warning in english"
Waqar Ali
"Sengoku Period Mountain Castle
Like Hachioji Castle and Oji Castle, this castle was one of the subsidiary castles of the Later Hojo clan, whose base was Odawara Castle.
It was also known as a border castle due to its location on the border with Kai Province, and is said to have played an important role.
Like Hachioji Castle, there is a Negoya (a small house) and Oshuden (main hall) at the base of the castle.
All that remains today are the remains of moats and other structures, with no stone walls or other features.
I was completely caught off guard because it was located within a park, but it's best to think of it as a hike (mountain climbing).
I wasn't confident in my stamina, so I chose Onnazaka. The slope was gentle, but the trail was well-maintained and narrow in places, running along cliffs, so it took quite a while. On the other hand, Otokozaka may be steep, but the path is well-maintained and there were no dangerous spots, so I made it down the mountain in no time. I recommend Otokozaka for those lightly dressed.
There is ample parking, and there is a park center and clean restrooms just before the park.
If you're visiting for the castle, I recommend gathering information about the castle at the park center beforehand.
I would have liked a map of the park and directions to the castle (I may not have noticed, but I apologize if they are already included)."
yoo na
""Please note that some parts of the path to the mountain's summit are difficult without mountaineering equipment!" This mountain castle was built by the Chikui clan, a branch of the Miura clan, a powerful clan on the Miura Peninsula, during the Kamakura period from the 12th to 14th centuries. This was a key transportation hub connecting Kai Province in Yamanashi Prefecture and Sagami Province in Kanagawa Prefecture, and during the Sengoku period in particular, the Hojo clan and Takeda clan, who ruled the area, fought many battles here. In 1590, the castle surrendered and was abandoned after Toyotomi Hideyoshi's Odawara Conquest. Today, no buildings remain to recall those days, and only man-made structures called "horikiri" remain as a reminder that this was a mountain castle. There is a free parking lot nearby, and a wooden deck that goes around the base of the castle. The mountain path leading to the top of the castle is steep and rugged, with the "Otokozaka" (men's slope) being easy to climb with light equipment, but the gentler "Onnazaka" (women's slope) being difficult to climb without mountain climbing equipment. It takes just under an hour to reach the top, and along the way there are giant hornets, mountain leeches, and the most dangerous "wild boars," and you should be careful that large branches may fall on you due to the decay of the trees. At the top of the mountain, there is overgrown grass, wooden chairs, tables, an observation deck, and a stone monument built in 1818. There is a toilet, but it is not a flush toilet. There is a clean toilet attached to the wooden deck at the base that is well maintained. It will take about two hours to go around. (Note that in the past, people have almost gotten lost on the mountain path, so you should refrain from climbing after 3 p.m. There are rare plants and animals, but they should not be collected.)"
Y O
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
Tsukui Castle Ruins are accessible by car, with a free parking lot available. Public transport options might involve buses from nearby stations, but driving is generally more convenient for reaching the park entrance.
Yes, there is ample free parking available near the park center and the base of the castle ruins.
The summit is reached via mountain paths. Otokozaka is a steeper, quicker route, while Onnazaka is a gentler, longer path. Both require good footwear.
Some visitors have noted a lack of English signage. It's advisable to have a translation app or pre-downloaded information.
While possible, it may involve multiple bus transfers. Driving is often recommended for ease of access to the park.
🎫 🎫 Tickets & Entry
No, entry to Tsukui Castle Ruins and the surrounding park is free.
The park and ruins are generally open during daylight hours. It's recommended to start your hike well before 3 PM to avoid getting lost or encountering issues.
There is no entrance fee for the park or the castle ruins.
It is strongly advised against visiting after 3 PM due to potential navigation difficulties and safety concerns.
No booking is required for visiting Tsukui Castle Ruins. It's a historical site open to the public.
🎫 🧭 Onsite Experience
You'll find remnants of moats (horikiri), earthworks, and the summit area with a stone monument and observation deck. No original buildings remain.
It's more of a hike than a casual walk. The paths to the summit are steep and can be rugged, requiring appropriate footwear.
The difficulty varies by path. Otokozaka is steep but direct, while Onnazaka is gentler but longer and can be challenging without proper gear.
Yes, there are clean restrooms at the park center near the base. The toilet at the summit is not a flush toilet.
Be aware of potential encounters with giant hornets, mountain leeches, and wild boars. Large branches may also fall.
📸 📸 Photography
The summit offers panoramic views. The remnants of the moats (horikiri) also make for interesting historical shots.
The trails can be narrow and steep in places, so exercise caution when stopping to take photos.
Morning light can be beautiful for landscape shots from the summit. Midday sun can be harsh.
Drone usage policies are not specified, but it's generally best to avoid them in natural parks and historical sites unless explicitly permitted.
No specific restrictions are mentioned, but always be respectful of the historical site and other visitors.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
It's advisable to pack plenty of water and snacks, as facilities on the mountain are limited. The park center at the base offers restrooms and potentially some information to engage children with the historical context of the mountain castle. Emphasize the adventure of exploring a 'ruined' castle and the importance of respecting nature and historical sites.
🚶♀️ Hikers and Nature Enthusiasts
Be prepared for a proper hike by wearing sturdy hiking boots and bringing adequate water. The diverse flora and fauna add to the natural appeal, but visitors should remain aware of potential wildlife encounters and exercise caution on the trails. The site offers a blend of physical activity and historical exploration, making it a great destination for a day trip.
Deep Dives
In-depth insights and expert knowledge
The History of Tsukui Castle
Today, the castle is no longer standing, with no stone walls or buildings remaining. Instead, visitors can explore the remnants of moats and earthworks, known as 'horikiri,' which are the primary evidence of its past as a formidable mountain fortress. The summit, situated at an altitude of 375 meters, offers a glimpse into the castle's strategic placement and provides panoramic views.
The site is managed as a park, with well-maintained trails leading to the summit. While the historical significance is profound, it's important to approach the visit as a hike with historical context rather than a traditional castle exploration. Information gathered beforehand can greatly enhance the understanding and appreciation of the site's past.
Navigating the Mountain Paths
In contrast, the Onnazaka (women's slope) is gentler in gradient but takes longer to traverse. While seemingly easier, some visitors have noted that it can become challenging without proper mountain climbing equipment due to its narrowness and proximity to cliffs. Careful consideration of your physical condition and the type of gear you have is recommended when choosing between these two paths.
Regardless of the chosen path, the trails are generally well-maintained. However, visitors should be aware of potential hazards such as giant hornets, mountain leeches, and wild boars. Additionally, due to the age of the trees, large branches may fall. It's crucial to wear sturdy footwear, stay on marked paths, and avoid climbing after 3 PM to ensure a safe and enjoyable experience.




Social
from TikTok, Instagram & Reddit