Ponds, underpasses, waterfalls. Even within the same park, ghost stories differ in the locations where they are told and the amount of documentation available. We compared external rumor-sharing pages with information from park administrators for Ootaka Ryokuchi Park, Obata Ryokuchi Park (main area), and Iwayado Park. Even if the descriptions of facilities and legends are the same, this does not mean that ghost sightings or photographs have been confirmed. Not confusing different areas within the park was also a starting point for this comparison.
Survey methods and evaluation criteria
The survey was conducted on October 20, 2026. We obtained and compared information from the National Haunted Map, the Aichi Prefecture Urban Development Association's park guide, and the official Aichi Prefecture tourism website. Rumors were divided into short claims and organized into five categories: agreement, partial agreement, disagreement, immeasurable, and new facts. A rumor is not considered false simply because the official page does not deal with paranormal phenomena. The ranking is based on a total of 100 points for data quality, 30 for source transparency, 25 for history/space, 20 for safety, 15 for novelty, and 10 for rumor source transparency. This is unrelated to the level of fear or the probability of ghost sightings. The illustrations are AI-edited images and not actual photographs of the locations.
| Rank | point | The main points of the rumor | judgement | Document quality |
|---|---|---|---|---|
| 1 | Obata Green Space | The page for this park on the nationwide paranormal map mentions that the park's Midorigaike Pond is haunted and that paranormal photos can be taken there. The same description also includes stories of people seeing something swimming in the pond late at night... | Partial match | 84/100 |
| 2 | Iwayado Park | The nationwide paranormal map includes an explanation of a cave associated with Gyōki, along with stories of orbs appearing in photographs near a waterfall and ghosts roaming the area at night. The explanation of its origin includes… | Partial match | 80/100 |
| 3 | Otaka Ryokuchi | The nationwide paranormal map describes the park as having go-karts and a dinosaur playground, and then notes that there have been sightings of ghosts in the pedestrian underpass near the park entrance. The Jizo statue near Biwagaike Pond… | Partial match | 74/100 |
1st Place: Obata Green Space | Partial Match (84 points)

The rumored details
The page for this park on the nationwide paranormal map mentions that the Midorigaike Pond in the park is haunted and that paranormal photographs can be taken there. The same description also includes stories of people seeing something swimming in the pond late at night and explanations linking it to past battles. Since Obata Green Park has multiple areas, this article only covers the listing for the main park, including Midorigaike Pond, and does not include stories about other areas such as the tunnel in the east park.
Source of the rumor and date of verification
The page referenced was the "Obata Ryokuchi (Main Park)" page on the National Haunted Map website. The text was retrieved on October 20, 2026. The source itself notes that it contains insufficient primary information and unverified content. The original accounts of those who experienced the place and the first appearance of the rumors are unidentified, and the original photographs were not obtained and analyzed for this purpose.
- Nationwide Haunted Map - Obata Green Park (Main Park)(Verification Date: 2026-10-20) — This post includes stories about ghosts appearing at Midorigaike Pond and the possibility of taking paranormal photographs there. The source of the information is listed with a disclaimer stating that it lacks primary sources and contains unverified content.
Things that could be confirmed from official and primary source materials
The Aichi Prefectural Urban Development Association's guide describes Obata Green Space as consisting of four areas: the main park, the west park, the east park, and the central park. The facility guide lists Midorigaike Pond as a facility within the main park. The access guide separates the main park and the east park, and lists the location of the management office as 1632-1 Nakayama, Ushimaki, Moriyama-ku, Nagoya City. The guide states that the gates to the main park's parking lot are open from 8:30 a.m. to 5:30 p.m. from October to March. This is not a report investigating any strange occurrences related to the pond.
- Aichi Prefectural Urban Development Association - Obata Green Space(Confirmed on 2026-10-20) — Described as a green space consisting of four areas: Main Park, West Park, East Park, and Central Park. The facility introduction includes Midorigaike Pond (Main Park), and the wooden walkway, stream plaza, and playground equipment are also described separately from the Main Park area.
- Access and parking information for Obata Green Space, Aichi Prefecture Urban Development Association.(Confirmed on 2026-10-20) — Information regarding parking and transportation at the kindergarten. The management office is located at 1632-1 Nakayama, Ushimaki, Moriyama-ku. The kindergarten's parking lot is open from 8:30 a.m. to 5:30 p.m. from October to March.
Points of agreement/contradictions
The location of Midorigaike Pond, as mentioned in the rumors, can be confirmed in the facility guide provided by the administrator. However, the information regarding ghosts appearing in the pond and the cause of the photographs cannot be confirmed from that guide. Regarding the explanation of the battle, there are no historical documents corresponding to this administrator guide, and it has not been adopted as a historical event. The map, which includes facility pins in the park, does not pinpoint the origin of the rumors.
| The rumored atomic claim | Matching results | reason | Corresponding documents |
|---|---|---|---|
| Green Pond in our park | support | The administrator designates Midorigaike Pond as part of the main park in their facility introduction. This is merely confirmation of the pond's location and does not endorse the claim that it is haunted. | Aichi Prefectural Urban Development Association - Obata Green Space |
| Midorigaike Pond is haunted. | Unconfirmed | I have checked the source of the information, but I do not have access to original records specifying the date and time, nor to independent observational data, so I cannot compare the occurrence of the phenomenon. | Nationwide Haunted Map - Obata Green Park (Main Park) |
| You can take photos of ghosts. | Unconfirmed | The original image and shooting settings do not match, making it impossible to determine what the photograph depicts or its reproducibility from the provided materials. | Nationwide Haunted Map - Obata Green Park (Main Park) |
Alternative interpretation
When considering what was seen at the pond at night, factors such as reflections on the water's surface, animals, and poor visibility should also be considered. However, since there is no information on the date, time, distance, or video footage, we cannot say that these factors can explain the story. Similarly, without the original image and shooting conditions, it is impossible to determine whether a photograph depicts a ghost or a specific object based solely on its appearance.
Scope and limitations of the investigation
I checked the administrator's homepage, access information, and the text of the rumor. I did not conduct research on primary historical documents related to the battle, nighttime observations at the site, or analysis of photographic data. While I was able to identify the park's boundaries and the location of the pond, I was unable to reconstruct the exact location where the late-night events occurred from independent sources.
Verification results: Partial match
The fact that the location referred to as Midorigaike in the rumors is listed as a facility within the park is consistent. However, there is no evidence to support the claims of ghost sightings or the explanations in the photographs. The only point of agreement is that the area and the facility correspond, and this does not translate into support for the claim that a paranormal event occurred at that location.
Document Quality Score
| Source transparency | 27/30 | You can track the relationship between the rumored warning sign and the administrator's instructions by looking at the pond and its usage conditions. |
|---|---|---|
| Historical and spatial context | 21/25 | This allows us to distinguish between our kindergarten and the other three areas, enabling us to make comparisons without mixing in rumors from other areas. |
| Safety information | 19/20 | You can check the specific closing times for the park's parking lot for each season. |
| Newness of information | 13/15 | While the verification date is available and you can return to the administrator's current usage guide, the date the experience occurred is unknown. |
| Transparency of the source of rumors | 4/10 | I know the source of the secondary publication, but I don't have the original accounts from the people who experienced it, nor the original photographs. |
| total | 84/100 | This is the overall quality of the materials. It does not represent the degree of truthfulness or danger associated with the supernatural phenomena. |
Safety information and maps
Please do not enter the pond or go down to the water's edge to verify the rumors. The park's parking lot closes at 5:30 p.m. from October to March. Please prioritize the latest information from the park administrators and on-site announcements, as there may be notices regarding competition-related work or restrictions on park paths.
2nd place: Iwayado Park | Partial match (80 points)

The rumored details
The nationwide paranormal map includes a description of a cave associated with Gyōki, along with stories of orbs appearing in photographs near a waterfall and ghosts roaming the area at night. The explanation of its origin mentions the year 725, but the description of that year and the stories of the strange occurrences need to be investigated separately. The reference page is noted as lacking primary source information and is not treated as current observational data.
Source of the rumor and date of verification
The text for Iwayado Park from the National Haunted Map was obtained on October 20, 2026. This is not a primary report showing specific photographer or eyewitness accounts, but rather a secondary listing example. The time and setting of the photograph, as well as details of the location of the nighttime experience, cannot be determined from this description alone.
- National Haunted Map - Iwayado Park(Verification Date: 2026-10-20) — Explains the origins of Gyōki and the cave along with the year 725. Includes stories of orbs appearing in photographs near the waterfall and ghosts roaming the area at night. There is a note about insufficient primary source information.
Things that could be confirmed from official and primary source materials
Aichi Prefecture's official tourism website, Aichi Now, describes Iwayado as a natural stone shrine associated with Gyoki. Iwayado Park is a tourist attraction in Seto City, featuring the gorge along the Torihara River, Seto Great Waterfall, and nature trails. Therefore, the connection between Gyoki and the cave, which is the background of the rumor, can be compared. However, the official text referenced is not a source that verifies the details of the events of 725 or the phenomena shown in the photographs. There is a difference in the address between the official location and the facility's display on the map, so the address alone does not indicate the origin of the waterfall.
- Aichi Prefecture Official Tourism Website Aichi Now - Iwayado Park(Verification Date: 2026-10-20) — This guide introduces Iwayado as a natural stone shrine associated with the renowned monk Gyoki. It provides information on its location at 81 Iwaya-cho, Seto City, the valley along the Torihara River, Seto Great Waterfall, nature trails, and illuminations.
Points of agreement/contradictions
What they have in common is that the park's name is based on a cave associated with Gyōki. The detail of 725 AD mentioned on the rumor page cannot be confirmed by this official guide alone. The official description of the natural landscape does not constitute independent evidence for the orbs around the waterfall or the ghosts at night. We are comparing the common origins, the unconfirmed dates, and the unconfirmed photographs and sightings separately.
| The rumored atomic claim | Matching results | reason | Corresponding documents |
|---|---|---|---|
| A cave associated with Gyōki | support | The official tourist guide describes Iwayado as a natural stone shrine associated with Gyoki, and the background of its origins aligns with this description. It does not endorse any supernatural phenomena. | Aichi Prefecture Official Tourism Website Aichi Now - Iwayado Park |
| 725 years | Unconfirmed | The rumor page mentions the year, but the official tourism text I referenced does not specify the year, and I have not checked the original source. | National Haunted Map - Iwayado Park |
| Orbs appear in photographs | Unconfirmed | Because we cannot independently examine the original footage or the conditions under which it was filmed, we cannot confirm the cause of the light or provide an explanation for it being a supernatural phenomenon. | National Haunted Map - Iwayado Park |
| Ghosts roam around at night. | Unconfirmed | The date, time, and location of the sighting were not specified, and there are no records in the official documents that correspond to a similar experience. | National Haunted Map - Iwayado Park |
Alternative interpretation
If the photo was taken near a waterfall, the effects of water droplets, light sources, and particles close to the lens should also be considered. However, since we haven't seen the original image and the shooting conditions, we cannot determine if the orb in this case is one of those. The presence of a sign indicating a light-up event does not prove that the same lighting was used in any past photographs.
Scope and limitations of the investigation
We compared the rumors page with the prefecture's official tourist information, but we did not investigate the origin of the Gyōki legend back to its original source. The original photographs, shooting dates, waterfall locations, and exposure settings are not all available, and there is a lack of individual records regarding nighttime sightings. There is no basis to determine the cause beyond the description of the landscape and legend.
Verification results: Partial match
The explanation of the cave associated with Gyōki corresponds to that in the official tourist guide. However, the year 725, photographs, and claims of nighttime sightings could not be confirmed in this document. The partial agreement is to avoid writing about the dates and supernatural occurrences with the same degree of certainty, while retaining the commonalities of the origins.
Document Quality Score
| Source transparency | 26/30 | We can provide separate tourist information for each location within the prefecture, as well as examples of rumors with cautionary notes. |
|---|---|---|
| Historical and spatial context | 22/25 | While we can distinguish and compare the shrine associated with Gyōki and the landscape of the valley, the exact dates are not confirmed in the original sources. |
| Safety information | 16/20 | While there are directions to access and parking, this information does not guarantee safety at the waterfall or underfoot at night. |
| Newness of information | 12/15 | You can return to the current guide you obtained, but the exact timing of the experience and the photos cannot be determined. |
| Transparency of the source of rumors | 4/10 | While the published stories can be traced, the initial records of the photographer and those who experienced the events remain unknown. |
| total | 80/100 | This is the overall quality of the materials. It does not represent the degree of truthfulness or danger associated with the supernatural phenomena. |
Safety information and maps
Please do not enter rocky areas around valleys and waterfalls, or restricted nature trails without permission. Seasonal illuminations and parking conditions may differ from normal. Please check the latest information on-site and on official websites, and avoid approaching the water's edge in dark areas.
3rd Place: Otaka Ryokuchi Park | Partial Match (74 points)

The rumored details
The nationwide paranormal map describes the park as having go-karts and a dinosaur playground, and then notes that there have been reports of ghost sightings in the pedestrian underpass near the park entrance. It also includes an explanation linking a Jizo statue near Biwagaike Pond to a memorial service for the incident, but the history of this statue could not be confirmed in the reference materials used in this analysis. We will not treat the description of the park's playground, the experience in the underpass, or the Jizo statue as single pieces of evidence.
Source of the rumor and date of verification
I read the page for Otaka Ryokuchi Park on the National Haunted Map on October 20, 2026. This is a secondary publication of rumors, and I was unable to trace back to the original records of people who had experiences in the underpass or the records of the Jizo statue's construction. The explanations of incidents and suicides in the original publication have not been adopted as part of the park's history that this article independently verified.
- National Haunted Map - Otaka Ryokuchi Park(Confirmed on 2026-10-20) — It describes the park as having go-karts and a dinosaur playground, and includes sightings of an underpass near the entrance and a story about a Jizo statue near the pond being used to commemorate the incident.
Things that could be confirmed from official and primary source materials
The Aichi Prefectural Urban Development Association, the park's administrator, provides information about the go-karts, dinosaur plaza, and Biwagaike Pond with boats in the Ootaka Ryokuchi Traffic Park. Its address is 1-1 Takayama, Ootaka-cho, Midori-ku, Nagoya City. The park's facilities, as described in the rumors, can be compared to this administrator's information. However, the homepage is a guide for park use and does not verify the sighting of the underpass or the history of the Jizo statue. A map is also provided to assist in locating the park's facilities.
- Aichi Prefectural Urban Development Association / Otaka Ryokuchi Park(Confirmed on 2026-10-20) — Information about the go-karts at the traffic park, the dinosaur plaza, and the boats on Biwagaike Pond. The address is 1-1 Takayama, Odaka-cho, Midori-ku, Nagoya City. This is not a report on an underpass sighting or an investigation into the history of a Jizo statue.
Points of agreement/contradictions
The mention of go-karts and a dinosaur playground aligns with the administrator's description. However, the claims of ghost sightings in the underpass and the explanation linking the Jizo statue to a specific incident were not supported by the administrator's documents consulted. The similarities in the playground equipment and pond are simply a coincidence with the background information mentioned in the rumors. This does not mean that the phenomena in the underpass or the explanation for the incident have also been confirmed.
| The rumored atomic claim | Matching results | reason | Corresponding documents |
|---|---|---|---|
| There are go-karts and a dinosaur play area. | support | The administrator's guide lists the go-karts and dinosaur playground at the traffic park. I only support the background information of the facilities included in the rumors. | Aichi Prefectural Urban Development Association / Otaka Ryokuchi Park |
| There have been reports of ghost sightings in the pedestrian underpass. | Unconfirmed | While I have confirmed the posting of the rumor, I have not obtained any independent documents that correspond to the original records of the experiences, dates, or other details. | National Haunted Map - Otaka Ryokuchi Park |
| An explanation linking Jizo statues to memorial services for the victims of the incident. | Unconfirmed | We were unable to find any records of the Jizo statue's construction or management documents that would indicate its history, so we cannot determine its connection to any specific incident. | National Haunted Map - Otaka Ryokuchi Park |
Alternative interpretation
To analyze what was seen in the underpass, conditions such as lighting, passersby, visibility, and reflections are also necessary. However, the published content does not allow us to reconstruct the date and time of the experience or the specific observation conditions. Regarding the Jizo statues, we will not determine their purpose based solely on their appearance, and we will leave unknown aspects for which there is no historical documentation.
Scope and limitations of the investigation
This is based on checking the park guide and rumor-posting pages provided by the administrator. We did not conduct on-site measurements in the underpass, interviews with those who experienced the event, or research documents related to the construction of the Jizo statue. We have not re-examined the sequence of events included in the rumor using other historical sources, and we did not have sufficient evidence to publish the eyewitness accounts and explanations of the memorial service as confirmed facts.
Verification results: Partial match
The go-karts and dinosaur playground mentioned as part of the park's background can be confirmed with guidance from the park's administrators. Sightings of the underpass and the history of the Jizo statue remain unconfirmed. By acknowledging both the matching facilities and the lack of supporting evidence for the experiences and history at the core of the rumors, we aim to prevent the narrative from being interpreted as supporting the supernatural phenomena simply because the park exists.
Document Quality Score
| Source transparency | 25/30 | While you can find the administrator's facility description and rumors page, there are no original documents detailing the history of the Jizo statue or personal experiences associated with it. |
|---|---|---|
| Historical and spatial context | 18/25 | While the background of the playground and pond can be identified, no independent historical documents linking them to the incident have been found. |
| Safety information | 15/20 | You can return to the administrator's user guide, but this document does not provide an individual safety assessment of the underground passage experience areas. |
| Newness of information | 12/15 | While we can provide the current park information and the date of this verification, the time when the rumor originated remains unknown. |
| Transparency of the source of rumors | 4/10 | While I can provide examples, I haven't been able to trace the initial evidence for eyewitness accounts or explanations of the Jizo statues. |
| total | 74/100 | This is the overall quality of the materials. It does not represent the degree of truthfulness or danger associated with the supernatural phenomena. |
Safety information and maps
Please do not obstruct normal traffic in underpasses or on park paths, and do not enter closed or construction zones. Do not move or touch Jizo statues or other objects for photography or to verify rumors; please prioritize consideration for other users. Please follow the latest instructions from the administrator regarding the use of ponds and facilities.
What I learned by crossing locations
At Otaka Ryokuchi Park, the description of it as a park with playground equipment and a pond, as mentioned in the rumors, can be verified with the park manager's guidance. At Obata Ryokuchi Park, the fact that Midorigaike Pond is located within the park and that the park is divided into four sections helps to clarify the spatial relationships. At Iwayado Park, we can confirm that it is a shrine related to Gyoki, but the specific dates, sounds, and the cause of the photographs are separate issues. For all three locations, we have only shown the parts of the facility descriptions that matched, and have avoided expanding the discussion to prove the supernatural occurrences. Descriptions of incidents and suicides are also based solely on the source of the rumors and have not been used as confirmed history for the parks.
summary
The three parks offered some aspects where the rumored facilities and legends could be compared with information from the administrators and official tourist guides. However, there are no independent observational records regarding sightings of the underpass, the ghost at Midorigaike Pond, photographs of the waterfall, or nighttime strange occurrences. When considering a visit, please use the operating hours, parking lot closing times, and the latest information on construction and traffic restrictions as your basis, rather than relying solely on the article's rating.
FAQ
Does "partially matching" mean that there are spirits present?
No. What I meant was that we were able to compare some of the background information included in the rumors, such as the playground equipment at Otaka Ryokuchi Park, Midorigaike Pond at Obata Ryokuchi Park, and the origin of Iwayado Temple, using available documents. This does not mean that we have confirmed the cause of the sightings or photographs.
Which area of Obata Green Space is being discussed?
The rumor page referenced is for the main kindergarten. The administrators distinguish between the main kindergarten, west kindergarten, east kindergarten, and central kindergarten when providing information. Stories from other areas, such as the tunnel in the east kindergarten, are not mixed in with the same events in the main kindergarten.
If a photo has a round light in it, does that mean it's a ghost photo?
The cause cannot be determined from the shape alone. The original photograph, light source, weather, lens, and shooting settings need to be examined. The reference page provided here does not definitively determine the cause of the problem with the photographs at Iwayado Park.
Can I enter the park at night?
Conditions vary depending on the park, facility, and parking lot. According to the information we have confirmed, the main parking lot at Obata Ryokuchi Park closes at 5:30 p.m. from October to March. Do not rely on maps or rumors for entry permission; please follow the latest official information and local regulations.
How to read this article and safety precautions
" [2026 Latest] Top 3 Parks in Aichi Prefecture Based on Documentary Research and Paranormal Rumors Ranking This is an article compiled by the Horror Tales File editorial team as a story, based on publicly available information, rumors circulating in the community, and information submitted by readers. It does not definitively state the authenticity of paranormal phenomena.
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