Costa Rica's Strangest Stories and Mysteries

Introduction

The important point is not that these events prove hidden forces or supernatural causes. Rather, Costa Rica is a useful example of how unusual experiences become cultural landmarks: a strange photograph can become an international mystery, a ghost story can preserve social fears and moral lessons, and a natural phenomenon can be remembered as something uncanny. The country’s Fortean appeal lies in that meeting point between evidence, interpretation and imagination.

Why Costa Rica produces so many strange stories

Costa Rica’s geography provides a natural setting for unusual reports. Volcanoes, cloud forests, isolated rural roads, deep lakes and a highly diverse ecosystem all create conditions where unfamiliar sights and sounds can be difficult to identify. The same environment that supports rare wildlife and spectacular weather can also encourage legends about hidden creatures, strange lights and unexplained encounters.

This does not mean the country is unusually mysterious compared with everywhere else. Instead, Costa Rica’s strange reports often reflect a close relationship between people and landscapes. Rural communities historically relied on storytelling to explain dangers encountered after dark, from lonely roads to forests and rivers. Folklore researchers have noted that Costa Rican traditions include figures such as La Segua, La Llorona and El Cadejos, creatures and spirits that appear in literature and oral culture as warnings, moral tales and expressions of social anxieties.[ResearchGate]researchgate.netResearch Gate(PDF) Monstruos fantásticos en la literatura costarricenseResearchGate(PDF) Monstruos fantásticos en la literatura costarricenseOctober 1, 2016…Published: October 1, 2016

Modern reports follow a similar pattern. A bright light in the sky, an unusual animal sighting or an unexplained photograph may begin as a simple observation, but later become attached to wider ideas about aliens, spirits or hidden aspects of nature.

The Lake Cote UFO photograph: Costa Rica’s most famous mystery

The strongest claim to international Fortean fame in Costa Rica is the Lake Cote photograph, taken in 1971 during an aerial mapping survey. The image shows what appears to be a disc-shaped object above Lake Cote in northern Costa Rica. It was not taken by a UFO enthusiast but during official aerial survey work connected with mapping and development planning, which is one reason the case has remained popular among researchers and the public.[ufouap.net]ufouap.netLake Cote Costa Rica UAP photograph | Global UFO Archive | Global UFO ArchiveSeptember 4, 1971…Published: September 4, 1971

Supporters of the UFO interpretation argue that the photograph is unusual because it comes from an identifiable survey mission rather than a vague eyewitness claim. The original context, camera equipment and surviving image have allowed decades of discussion and technical examination. Some UFO researchers have argued that the object appears to be a solid unknown craft.[ufouap.net]ufouap.netLake Cote Costa Rica UAP photograph | Global UFO Archive | Global UFO ArchiveSeptember 4, 1971…Published: September 4, 1971

Sceptics point out that a photograph alone cannot establish what an object actually was. Possible explanations include a photographic artefact, an object close to the camera, a reflection, film damage or another ordinary cause that became difficult to reconstruct after the event. The strongest criticism is not that the image is fake, but that identifying the shape as an extraterrestrial vehicle requires assumptions beyond what the photograph itself proves.[ufouap.net]ufouap.netLake Cote Costa Rica UAP photograph | Global UFO Archive | Global UFO ArchiveSeptember 4, 1971…Published: September 4, 1971

The Lake Cote case remains significant because it occupies an unusual middle ground. It is neither a simple hoax nor confirmed evidence of something extraordinary. Instead, it is a classic example of how a genuine historical record can generate competing interpretations when the available evidence is incomplete.

Strange lights, skies and natural mysteries

Costa Rica has also produced reports of unusual lights and sky phenomena, many of which illustrate the difficulty of separating extraordinary claims from rare but natural events.

One example is the appearance of a vivid iridescent cloud display reported across parts of Costa Rica in 2015. Images circulated widely because the colours looked almost artificial, and some observers described the sight as something otherworldly. Atmospheric optics experts, however, recognise such displays as real natural phenomena caused by sunlight interacting with tiny water droplets or ice crystals in clouds.[ABC News]abcnews.comABC News Mysterious Iridescent 'End of Times' Cloud PhenomenonABC NewsMysterious Iridescent 'End of Times' Cloud Phenomenon…September 17, 2015 — An iridescent, multi-hued cloud phenomenon was rece…Published: September 17, 2015

Another area of interest is so-called “earthquake lights” and related luminous reports. A study from the National University of Costa Rica examined historical narratives describing unusual light and sound events associated with seismic areas, suggesting that some traditional accounts may preserve memories of possible geological phenomena rather than purely supernatural events.[revistas.una.ac.cr]revistas.una.ac.crof Possible Evidence about Historical Tectonic Activity in Costa Rica | Revista Geográfica de América Central.January 10, 2024…Published: January 10, 2024

These cases show why Fortean material is often complicated: a strange report can be culturally meaningful even when a scientific explanation exists. The mystery may shift from “what caused this?” to “why did people interpret it this way, and why did the story survive?”

Costa Rica’s legendary creatures and haunted roads

Long before modern UFO reports, Costa Rica already had a rich tradition of frightening encounters. Many of these stories belong to the wider Central American folklore tradition but have developed distinctive Costa Rican versions.

La Segua: the horse-faced apparition

La Segua is among the country’s best-known legends. The story usually describes a beautiful woman who appears to travellers, especially men travelling at night, before revealing a terrifying horse-like face. The tale has often been interpreted as a warning against drunkenness, arrogance or immoral behaviour.[folklore.usc.edu]folklore.usc.eduLa Segua | USC Digital Folklore ArchivesLa Segua | USC Digital Folklore Archives

The power of La Segua is not that people seriously expect to meet such a creature today, but that the story captures old fears surrounding isolated roads, nighttime travel and social behaviour. A lonely road after dark becomes a stage where a moral lesson is transformed into a monster.

El Cadejos and other night-time beings

Stories of El Cadejos, a mysterious dog-like creature associated with nighttime journeys, belong to the same tradition of supernatural warnings. Versions vary, with the creature sometimes presented as dangerous and sometimes as a strange protector. These shifting interpretations show how folklore changes as communities retell it.[Costa Rica Tourism]tourism.co.crsta Rica Tourism Costa Rica Folk Legends: La Llorona, La Segua & Moresta Rica TourismCosta Rica Folk Legends: La Llorona, La Segua & More…

Such legends are important to Costa Rica’s strange-history record because they demonstrate that “mystery” does not always mean an unexplained event. Sometimes the mystery is why a story remains emotionally powerful for generations.

Wildlife that looks like folklore

Costa Rica’s biodiversity also contributes to its reputation for strange encounters. The country contains many unusual species, some of which seem almost mythical to outsiders.

The velvet worm is a good example. These rare invertebrates, sometimes described as “living fossils”, have inspired folklore and artistic references because of their unusual appearance and hunting method. Research into their cultural presence found Costa Rica to be one of the countries where velvet worms have generated notable folklore and artistic interest.[arXiv]arxiv.orgVelvet Worms (Onychophora) in Folklore and Art: Geographic Pattern, Types of Cultural Reference and Public PerceptionMay 21, 2016…Published: May 21, 2016

In a country with dense rainforest and many poorly explored habitats, reports of strange animals are unsurprising. However, many apparent “mystery creatures” are eventually explained as known species seen briefly, at night or under unusual conditions. The fascination remains because the natural world itself can appear stranger than fiction.

How believers and sceptics view Costa Rica’s mysteries

Costa Rica’s Fortean stories attract several different interpretations.

Believers often focus on the strongest points of unusual cases: the official origin of the Lake Cote photograph, the number of eyewitness accounts for strange lights, or the persistence of traditional stories. For them, these cases suggest that some aspects of reality remain poorly understood.

Sceptics usually approach the same material by asking different questions: Was there enough information to identify the object? Could ordinary causes explain the observation? Was a legend created to communicate social values rather than record an event? These approaches do not necessarily remove the fascination; they change the focus from proving the extraordinary to understanding how extraordinary stories are created.

The most interesting cases are often those that resist easy answers. Costa Rica’s strange history is not a catalogue of confirmed paranormal events, but a record of how people respond when they encounter something unusual — whether that something is a photograph over a lake, a strange light in the sky, a rare animal or a story carried through generations.

Why Costa Rica remains a Fortean hotspot

Costa Rica’s place in strange-history culture comes from the interaction of three forces: a dramatic natural environment, a strong storytelling tradition and a few unusually persistent modern mysteries. The Lake Cote photograph gives the country a place in UFO history, while legends such as La Segua and El Cadejos show that older fears and beliefs continue to shape cultural memory.[ufouap.net]ufouap.netLake Cote Costa Rica UAP photograph | Global UFO Archive | Global UFO ArchiveSeptember 4, 1971…Published: September 4, 1971

The lasting appeal of Costa Rica’s mysteries is not simply that they are unexplained. It is that they reveal how humans make meaning from uncertainty. A strange shape on a photograph, a light over a mountain, or a creature on a dark road can become more than an event: it can become part of a country’s shared imagination.

Amazon book picks

Further Reading

Books and field guides related to Costa Rica's Strangest Stories and Mysteries. Use these as the next step if you want deeper reading beyond the article.

Book

Secret History of the World

By Jonathan Black

First published 2007. Subjects: Secret societies, History, World history, Secret societies -- History, Sociétés secrètes -- Histoire.

See on Amazon

Book

The Encyclopedia of Ghosts and Spirits

By Rosemary Ellen Guiley

First published 1999.

See on Amazon

Book

The Mothman Prophecies

By John Keel

Offers a broader strange phenomena comparison.

See on Amazon

Book

The Secret History of the World

By Jonathan Black

Supports readers interested in unusual traditions and mysteries.

See on Amazon

Browse more on Amazon:Secret History of the WorldThe Encyclopedia of Ghosts and SpiritsThe Mothman Prophecies

As an Amazon Associate I earn from qualifying purchases.

eBay marketplace picks

Marketplace Samples

Live-tested eBay searches with available results related to this page.

Shop location

UsingUSA USA USAUKCanadaAustraliaIreland

Example eBay listing

San Jos - Costa Rica Map Poster Wall Art Premium Quality Fine Art Print

SearcheBay.co.uk: Costa Rica map print

Browse similar oneBay.co.uk

Example eBay listing

Costa Rica Watercolor Map Box Canvas and Poster Print (1034)

SearcheBay.co.uk: Costa Rica map print

Browse similar oneBay.co.uk

Example eBay listing

San José City Map Print, Costa Rica Travel Poster, Modern Map, Wall Decor Art

SearcheBay.co.uk: Costa Rica map print

Browse similar oneBay.co.uk

Browse more oneBay.co.uk

Example items shown for inspiration; availability and pricing can change. Branchoria may earn a commission if you purchase through outbound eBay links.

Endnotes

1. Source: ufouap.net
Title: Lake Cote Costa Rica UAP photograph | Global UFO Archive | Global UFO Archive
Link:https://www.ufouap.net/en/cases/lake-cote-costa-rica-uap-photograph

Published: September 4, 1971

2. Source: folklore.usc.edu
Title: La Segua | USC Digital Folklore Archives
Link:https://folklore.usc.edu/la-segua/

3. Source: researchgate.net
Title: Research Gate(PDF) Monstruos fantásticos en la literatura costarricense
Link:https://www.researchgate.net/publication/312872759_Monstruos_fantasticos_en_la_literatura_costarricense

Published: October 1, 2016

4. Source: revistas.una.ac.cr
Link:https://www.revistas.una.ac.cr/index.php/geografica/article/view/18773

Published: January 10, 2024

5. Source: arxiv.org
Link:https://arxiv.org/abs/1605.06706

Published: May 21, 2016

6. Source: folklore.usc.edu
Title: encounter with aliens
Link:https://folklore.usc.edu/encounter-with-aliens/

Published: May 15, 2023

7. Source: revistas.una.ac.cr
Link:https://www.revistas.una.ac.cr/index.php/istmica/article/view/17383

Published: July 24, 2022

8. Source: researchgate.net
Link:https://www.researchgate.net/publication/341688659_LA_LEYENDA_GUANACASTECA_LA_MONA_ESTRATEGIA_DIDACTICA_PARA_EL_DESARROLLO_DEL_PENSAMIENTO_CRITICO_Y_LA_COMPETENCIA_CULTURAL_DESDE_EL_AULA_UNIVERSITARIA

9. Source: folklore.usc.edu
Title: legend costa rican
Link:https://folklore.usc.edu/legend-costa-rican/

Published: December 15, 2010

10. Source: researchgate.net
Link:https://www.researchgate.net/publication/311359543_Construccion_de_la_subjetividad_femenina_en_la_leyenda_de_La_Segua

11. Source: tourism.co.cr
Title: sta Rica Tourism Costa Rica [Folk Legends]({{ ‘folk-legends/’ | relative_url }}): La Llorona, La Segua & More
Link:https://www.tourism.co.cr/costa-rica-art-and-culture/costa-rica-cultural-heritage/legends

12. Source: abcnews.com
Title: ABC News Mysterious Iridescent ‘End of Times’ Cloud Phenomenon
Link:https://abcnews.com/US/mysterious-iridescent-end-times-cloud-phenomenon-spotted-costa/story?id=33834206

Published: September 17, 2015

13. Source: costarica.org
Link:https://costarica.org/people/women-legends/

Published: May 13, 2019

14. Source: rerc-journal.tsd.ac.uk
Link:https://rerc-journal.tsd.ac.uk/index.php/religiousexp/article/view/167/148

15. Source: thephenomenon.app
Title: costa rica
Link:https://thephenomenon.app/costa-rica/

Additional References

16. Source: repositorio.una.ac.cr
Link:https://repositorio.una.ac.cr/items/e3f50905-e140-4bd4-9326-43c6a7f1e551/full

17. Source: beforeitsnews.com
Link:https://beforeitsnews.com/paranormal/2025/12/mapping-plane-took-this-photo-of-an-alien-craft-in-costa-rica-2570483.html

Published: December 11, 2025

18. Source: drevo.uaportal.com
Link:https://drevo.uaportal.com/eng/section-zhizn/news-legendarnyij-snimok-nlo-obekt-nad-pustyinnyim-ozerom-vpervyie-za-50-let-pokazali-publike-30-08-2024.html

19. Source: eraoflight.com
Link:https://eraoflight.com/2023/01/13/this-is-clearest-ufo-photo-ever-released-that-shows-typical-alien-craft/

Published: January 13, 2023

20. Source: mitoleyenda.com
Link:https://mitoleyenda.com/mitos-y-leyendas/la-cegua-un-espectro-con-cabeza-de-caballo-1674

21. Source: nuforc.org
Link:https://nuforc.org/sighting/?id=190209

Published: May 27, 2025

22. Source: scielo.cl
Link:https://www.scielo.cl/scielo.php?pid=S0718-22952021000200671&script=sci_arttext&tlng=es

23. Source: costaricarios.com
Link:https://costaricarios.com/costa-rica-bizarre-unique-animals

Published: January 18, 2017

24. Source: coastalstorms.com
Title: The Bizarre Phenomenon of Animal Rain: When Fish and Frogs Fall From the Sky
Link:https://coastalstorms.com/the-bizarre-phenomenon-of-animal-rain-when-fish-and-frogs-fall-from-the-sky/

25. Source: haciendariocote.com
Link:https://www.haciendariocote.com/mysteries