【Complete Guide】Tomogashima (Okinoshima), the Sacred Ground of Laputa: Castle in the Sky – Thorough Explanation | Ghibli Spot in Wakayama
Tomogashima, floating in the Kitan Strait of Wakayama Prefecture, has recently drawn attention as a mystical island that evokes the world of Studio Ghibli’s masterpiece “Laputa: Castle in the Sky.” The ruins of former Japanese military gun emplacements and brick structures covered in ivy on Okinoshima in particular present a landscape that could be said to be Laputa itself. This article comprehensively explains everything you need to know before visiting, from the charm of Tomogashima and Okinoshima to access methods and points to note when sightseeing.
What is Tomogashima? Basic Information and History
Overview of Tomogashima
Tomogashima is a general term for a group of uninhabited islands belonging to Kata in Wakayama City, Wakayama Prefecture. Located in the Kitan Strait (Kii Channel), it consists of four islands: Okinoshima, Jinoshima, Torashima, and Kamishima. Of these, the largest island that tourists can visit is Okinoshima, which has an area of approximately 1.27 square kilometers and a circumference of approximately 9 kilometers.
Currently designated as part of the Seto Inland Sea National Park, it has become a valuable spot where rich nature and historical heritage coexist. Despite being an uninhabited island, it is a popular tourist destination visited by many tourists throughout the year.
Historical Background of Tomogashima
The history of Tomogashima is deeply connected to its role as a military fortress during the Meiji era. During the Meiji period, five gun emplacements were constructed on this island for the purpose of defending Osaka Bay. Because of its strategically important location in the Kitan Strait, it was developed as a fortress to prevent foreign naval fleets from entering.
After the end of World War II, these gun emplacements ceased their function, and the island became uninhabited. Over the long years that followed, the ruins gradually returning to nature have created a unique atmosphere and are now affectionately known as the “Laputa Island.”
Why is it Called the “Laputa Island”?
Similarities with Ghibli Works
The reason Tomogashima is attracting attention as a model location for “Laputa: Castle in the Sky” lies in its unique landscape. While there is no official record that Director Hayao Miyazaki actually visited Tomogashima, the atmosphere of the ruins on the island remarkably matches the world of the film.
The following elements in particular evoke the world of Laputa:
- Brick structures covered in ivy and plants: The landscape where nature and artificial structures merge strongly suggests Laputa’s castle
- Moss-covered stone walls and stairs: Historic ruins that convey the passage of time with abundant greenery
- Abandoned gun emplacement ruins: The way traces of civilization are being absorbed into nature
- Structures appearing suddenly within deep forest: A configuration that stirs the explorer’s spirit
“Laputa Island” Spreading on Social Media
Since the 2010s, photos of Tomogashima have gone viral on social media such as Instagram and Twitter as “It looks like Laputa!”, with popularity skyrocketing especially among younger generations. It has become a popular tourist destination as a photogenic spot representing the world of Laputa.
As a place where one can actually experience the world of Laputa, known for the spell “Balus!”, it has attracted attention not only from anime fans but also from photography enthusiasts and history lovers.
Complete Guide to Sights at Tomogashima and Okinoshima
Ruins of the Third Gun Emplacement
The most famous tourist spot at Tomogashima is the ruins of the Third Gun Emplacement. Brick arches and ammunition magazines remain, presenting a world that is truly “Laputa” itself.
Features:
- Underground passage approximately 160 meters long
- Gun position where 28-centimeter howitzers were positioned
- Fantastical atmosphere covered in ivy and moss
- Interior is dim, making a flashlight essential
The Third Gun Emplacement ruins are well preserved, allowing for good observation of the structure at the time. The interior of the tunnel is cool even in summer, and a unique atmosphere permeates the space. It is popular as a photography spot, with beautiful photos possible due to the contrast of light and shadow.
Ruins of the Second Gun Emplacement
While the Second Gun Emplacement ruins are less well-known than the Third Gun Emplacement, they have a unique charm as ruins returning more to nature.
Features:
- Stronger sense of unity with nature
- Crumbling structures evoke history
- Fewer visitors, allowing for quiet exploration
- Plants covering buildings are more prominent
The path to the Second Gun Emplacement ruins is somewhat unclear, so it is recommended to check the map beforehand.
Ruins of the First Gun Emplacement
Located in the northwestern part of the island, the ruins of the First Gun Emplacement is also a scenic spot offering views of the sea.
Features:
- Panoramic view of the Kitan Strait
- Relatively easy to access location
- Easy-to-understand gun emplacement structure
- On clear days, Awaji Island is also visible
Torashima Viewpoint
An observation point near the highest point of the island where one can enjoy the natural beauty of Tomogashima.
Features:
- 360-degree panoramic view
- Overlook of other islands of Tomogashima
- Clear views of Shikoku on good weather days
- Forest bathing on hiking courses
Tomogashima Lighthouse
A historic lighthouse that was first lit in 1872 (Meiji 5) and still operates today.
Features:
- Beautiful white lighthouse
- Open grassland nearby ideal for resting
- Photography spot where blue sea and sky stand out
- Superb sea views from the vicinity of the lighthouse
Kosuke Matsu Beach
A beach near the boat landing with beautiful sandy shore and highly transparent sea.
Features:
- Contrast between white sand and blue sea
- Possible to swim in summer (facilities are limited)
- Rocky areas for tide pool exploration
- Healing spot for relaxing time
Access to Tomogashima
Ferry from Kata Port
The only way to access Tomogashima is via ferry from Kata Port in Wakayama Prefecture operated by Tomogashima Steamship.
Operating Information:
- Travel time: Approximately 20 minutes
- Fares: Adults round-trip 2,200 yen, Children round-trip 1,100 yen (as of 2024, subject to change)
- Operating schedule: Approximately 4 round trips daily (varies by season)
- Capacity: Approximately 100 passengers
Important Notes:
- Frequent cancellations due to weather (especially in winter or rough seas)
- Advance reservations recommended during peak periods (Golden Week, summer vacation, autumn leaves season)
- Must check operating status on the official Tomogashima Steamship website beforehand
- Always confirm the final ferry time and avoid missing it
Access to Kata Port
By train:
- About 15 minutes walk from “Kata Station” on the Nankai Electric Railway
- About 30 minutes from Wakayama City Station to Kata Station
- About 1 hour 30 minutes from Osaka Namba Station
By car:
- About 40 minutes from “Wakayama IC” on the Hanwa Expressway
- Paid parking available around Kata Port (approximately 500-1,000 yen per day)
- Parking lots may be full during peak periods, so early arrival is recommended
Recommended Sightseeing Duration and Model Courses at Tomogashima
Recommended Sightseeing Time
For sightseeing at Tomogashima, it is recommended to secure a minimum of 3 to 4 hours. If you include thorough exploration of all gun emplacement ruins, photography, and breaks, 5 to 6 hours would allow for a more fulfilling sightseeing experience.
Half-Day Course (3-4 hours)
- Arrival at boat landing(10 minutes) – Check restrooms and maps
- Ruins of the Third Gun Emplacement(60 minutes) – Thoroughly explore main spot
- Torashima Viewpoint(40 minutes) – Enjoy hiking and scenery
- Tomogashima Lighthouse(30 minutes) – Rest near lighthouse
- Ruins of the Second Gun Emplacement(40 minutes) – Explore ruins
- Return to boat landing(30 minutes) – Board return ferry
Full-Day Course (5-6 hours)
- Arrival at boat landing(15 minutes)
- Kosuke Matsu Beach(30 minutes) – Beach exploration
- Ruins of the Third Gun Emplacement(90 minutes) – Photography at leisure
- Lunch and break(60 minutes) – Bring your own bento box
- Torashima Viewpoint(60 minutes)
- Ruins of the First Gun Emplacement(40 minutes)
- Tomogashima Lighthouse(40 minutes)
- Ruins of the Second Gun Emplacement(50 minutes)
- Return to boat landing(30 minutes)
Precautions and Packing List for Tomogashima Sightseeing
Essential Items
Tomogashima is an uninhabited island with extremely limited facilities. Be sure to prepare the following items.
Absolutely necessary items:
- Flashlight or headlamp: The interior of gun emplacements is pitch dark
- Drinking water: No vending machines on the island (2 liters or more recommended in summer)
- Food: Bring packed lunch or snacks as there are no restaurants or shops
- Hat and sunscreen: Some areas have little shade
- Insect repellent spray: Essential especially in summer
- Towel and wet wipes: For wiping sweat and washing hands
- Trash bags: Always take your garbage with you
- Map and smartphone: To avoid getting lost (though signal is unstable)
- Mobile battery: To prepare for phone battery depletion
- First aid kit: Bandages, disinfectant, etc.
Convenient to have:
- Trekking shoes or comfortable walking shoes (sandals are dangerous)
- Long sleeves and long pants (prevent insect bites and injuries)
- Rainwear (to prepare for weather changes)
- Camera and tripod (for photography)
- Portable toilet (only boat landing toilets are available on the island)
Clothing
- Comfortable, practical clothing: Suitable for hiking
- Broken-in shoes: Sneakers or trekking shoes recommended due to mountain trails and stairs
- Seasonal adjustments: Heat countermeasures in summer, warm clothing in winter
- Covering skin: Avoid exposing skin to prevent insect bites and injuries
Safety Precautions
- Dangers of ruins: Some areas are prone to collapse; never enter restricted areas
- Watch your footing: Many steps, holes, and slippery places
- Avoid dark places without light: Always use flashlight inside gun emplacements
- Avoid going alone: Travel in groups when possible
- Weather changes: Be careful of sudden rain and strong winds; don’t overexert yourself
- Heat stroke prevention: Especially in summer, drink water frequently and take breaks
- Wildlife: Be cautious of snakes; don’t wander into bushes carelessly
Manners and Rules
- Always take trash with you: To preserve island beauty
- Don’t damage plants: For nature conservation
- Don’t write on surfaces: Treasure historical heritage
- Keep your voice down: Out of consideration for other tourists
- Smoke in designated areas: Fire prevention
- Drone photography: Check beforehand if permission is necessary
Best Seasons for Tomogashima Sightseeing
Spring (March-May)
Recommendation: ★★★★★
- Mild climate perfect for sightseeing
- Beautiful new greenery, ideal for photos
- Cherry blossom season (late March-early April) especially popular
- Make advance reservations as Golden Week gets crowded
Summer (June-August)
Recommendation: ★★★☆☆
- Beautiful blue sea and sky
- Can also enjoy sea swimming
- Heat and insect countermeasures essential
- Many cancellations during rainy season (June)
- Very crowded during summer vacation period
Autumn (September-November)
Recommendation: ★★★★★
- Stable climate, perfect for sightseeing
- Beautiful autumn foliage (November)
- Relatively less crowded
- Best season for photography
Winter (December-February)
Recommendation: ★★☆☆☆
- Fewer tourists, can enjoy quietly
- Clear air makes scenery crisp
- Many cancellations due to poor weather
- Warm clothing essential
- Operating days may be limited
Nearby Sightseeing Spots
Kata Town Streets
Kata, the gateway to Tomogashima, is a charming town retaining the atmosphere of a traditional fishing village.
- Kata Harubi Shrine: Famous for romantic relationships
- Awashima Shrine: Known for doll offering; impressive display of hina dolls
- Kata Sakana Line (Nankai Kata Line): Enjoy local train travel
- Kata Seafood Cuisine: Eateries scattered throughout serving fresh seafood
Tourist Spots in Wakayama City
- Wakayama Castle: Former residence of the Kii Tokugawa family, one of the Tokugawa three families
- Kii Misui Temple: Historic temple famous for cherry blossoms
- Wakayama Marina City: Theme park and hot spring facilities
- Kuroshio Market: Market with fresh seafood
Accommodation at Tomogashima
Tomogashima is an uninhabited island with no general lodging facilities. However, Tomogashima Campground operates seasonally (normally April-November).
Tomogashima Campground
- Operating period: April-November (varies by year)
- Reservations: Advance reservation required
- Facilities: Tent sites, cooking areas, restrooms
- Notes: Limited electricity and water; bring your own provisions
Using the campground allows you to experience the fantastical Tomogashima at dusk and early morning. Stargazing is also attractive.
Lodging near Kata
Although day trips are the norm, there are inns and hotels around Kata.
- Kyukamura Kii Kata: Public lodging with hot spring and ocean views
- Kata Awashima Hot Spring: Hot spring inn overlooking the sea
- Minshuku: Reasonably priced with seafood cuisine
Learning More About Tomogashima’s History
Fortification in the Meiji Era
Tomogashima was fortified in the 1890s. At that time, Japan was strengthening the defense of major ports against threats from Western powers. Osaka Bay was the gateway to Japan’s economic and political center, making its defense a national priority.
Five gun emplacements were constructed on Tomogashima:
- First Gun Emplacement: Completed in 1890 (Meiji 23)
- Second Gun Emplacement: Completed in 1892 (Meiji 25)
- Third Gun Emplacement: Completed in 1895 (Meiji 28)
- Fourth Gun Emplacement: Left incomplete
- Fifth Gun Emplacement: Completed in 1901 (Meiji 34)
These gun emplacements were equipped with the most advanced artillery of the time, and approximately 2,000 soldiers were stationed there.
From Post-War Period to Present
After World War II ended, Tomogashima’s military facilities ceased their purpose, and the island became uninhabited in 1947 (Showa 22). Subsequently, it was incorporated into the Seto Inland Sea National Park in 1950, aiming to balance nature conservation and tourism.
The gun emplacement ruins, abandoned for many years, are being consumed by nature while retaining their original appearance, receiving attention as valuable modern heritage. Today, cherished by many as a tourist destination where historical value and natural beauty merge, they continue to attract visitors.
Visitors’ Impressions of Tomogashima
Positive Comments
- “I truly felt immersed in the world of Laputa”
- “The harmony between ruins and nature was beautiful, and photography was enjoyable”
- “I could spend quiet time away from urban hustle and bustle”
- “It was a valuable experience to feel history”
- “As hiking, it provided appropriate exercise”
Points Raised as Cautions
- “It was much hotter than imagined in summer; I ran out of water”
- “The interior of the gun emplacements was truly pitch dark; a flashlight is necessary”
- “More walking than expected; sneakers are essential”
- “Too crowded during peak season to enjoy the quiet atmosphere”
- “Easy cancellations due to weather make planning difficult”
Tips for a Successful Tomogashima Visit
Thorough Advance Preparation
- Check weather forecast: Monitor weather several days before visit
- Ferry operating status: Final confirmation on the day
- Equipment checklist: Confirm items the day before
- Physical conditioning: Build up walking habits
Prioritize Early Action
- Aim for the first ferry: Fewer people, leisurely sightseeing
- Book ahead during peak seasons: Advance reservations recommended for Golden Week and summer vacation
- Flexible scheduling: Manage time to catch the final ferry
Photography Tips
- Soft morning light: Ideal for photographing the Third Gun Emplacement
- Use backlighting: Taking photos from inside the tunnel toward outside creates a fantastical effect
- Wide-angle lens: Convenient for capturing entire ruins
- Tripod: Useful for photography in dark places
- Include people: Scale becomes apparent, making photos more impressive
Frequently Asked Questions (FAQ)
Q1: Is Tomogashima truly a model for Laputa?
A1: Studio Ghibli has never officially announced that Tomogashima was a model. However, because the atmosphere of the ruins on the island closely resembles the world of “Laputa: Castle in the Sky,” it is affectionately known as “Laputa Island” among fans. You will be amazed by the similarity when you actually visit.
Q2: Can beginners enjoy it?
A2: Yes, absolutely. The island has well-maintained hiking courses, and those without great stamina can still visit the main sights. However, minimum equipment is essential (comfortable walking shoes, drinking water, flashlight). If you sightsee at a comfortable pace, even beginners can thoroughly enjoy it.
Q3: Is it okay to bring children?
A3: It’s fine for children in elementary school or older, but caution is necessary. The ruins are dark and footing is unstable in places, so an adult must accompany children at all times, never taking your eyes off them. Baby strollers cannot be used, so bringing infants is not recommended.
Q4: Are there restrooms?
A4: The only restroom on the island is near the boat landing. No restrooms exist around the gun emplacements, so always use the facilities before sightseeing. Those worried should bring a portable toilet.
Q5: Can you sightsee on rainy days?
A5: Light rain allows sightseeing, but it’s not recommended. Footing becomes slippery and dangerous. Also, strong wind or rough weather may cause ferry cancellations, preventing access to the island altogether. Check the weather forecast and choose a sunny day for your visit.
Q6: Can you bring pets?
A6: Pets can board the ferry, but must be on a leash on the island, respecting other tourists. Also, hot days create harsh conditions for animals, so ensure adequate water and breaks.
Q7: Can you sightsee in winter?
A7: It’s possible, but weather-related cancellations increase. Additionally, ferry operating schedules may be reduced, so check beforehand. With proper winter clothing, you can enjoy a quiet Tomogashima with few people.
Q8: Can you enjoy it as a solo traveler?
A8: Absolutely. However, considering safety, visit during times when more people are around (morning to early afternoon). Also, informing family or friends of your destination provides peace of mind.
Summary: Experience a Non-Everyday Adventure at Tomogashima
Tomogashima (Okinoshima) in Wakayama Prefecture is the one and only tourist destination where one can experience the world of “Laputa: Castle in the Sky.” The unique landscape of a Meiji-era military fortress gradually being reclaimed by nature leaves visitors with profound emotion.
Gun emplacement ruins, ivy-covered brick tunnels, beautiful sea, and rich nature—all these elements merged together make Tomogashima a captivating place for photographers, history enthusiasts, anime fans, and all who seek adventure.
Being an uninhabited island with limited facilities, visiting requires advance preparation. However, this very inconvenience creates special experiences unavailable in cities. The tension of advancing through a dark tunnel with flashlight in hand, panoramic vistas from the observation point, the weight of history carved into the ruins—all are precious experiences only Tomogashima can offer.
Affected by weather and ferry operations, visits require flexible planning, but when you actually reach the island, the joy is immeasurable. Do prepare thoroughly and embark on a Tomogashima adventure. It will surely become an unforgettable memory.
A magical time where you’ll want to chant “Balus!” awaits you at Tomogashima.
