THINK ABOUTIT MERMAID ENCOUNTER REPORT

1809: Mermaid Sighting near Sandside, Caithness, Scotland

On the morning of January 12, 1809, on the remote northeastern coast of Scotland at Sandside Bay in Caithness, Miss Eliza Mackay — daughter of the minister of Reay — and a companion were standing on the beach when they saw a face in the sea. Round and plump and of a bright pink hue — a young woman’s face, emerging from the water of the North Atlantic in January. It disappeared. It reappeared. This time they could see more: well-formed human breasts above the waterline, and a long thin white arm lifted periodically above the waves to toss back long green hair. They watched this for over an hour. The entity — whatever it was — dove and reappeared rhythmically, each time lifting that thin white arm to push the green hair back from its face. Miss Mackay was the daughter of a Church of Scotland minister in a remote northern parish. She wrote a detailed letter describing what she and her companion had seen with a precision that specifically confined itself to what was physically visible rather than embellishing from existing sea-creature mythology. Jerome Clark preserved her account in Unexplained! Following her report, local residents including a schoolmaster from Reay came forward with similar sightings from the same Caithness coastline — suggesting the entity had been present in these waters for some time before Miss Mackay and her companion saw it on January 12, 1809.

Date: January 12, 1809 

Sighting Time: Morning 

Day/Night: Day — morning 

Location: Sandside Bay, near Reay, Caithness, Scotland — northeastern coast 

Urban or Rural: Rural — remote northeastern Scottish coastline 

No. of Entity(s): 1 

Entity Type: Aquatic humanoid — upper body female in appearance; long green hair; bright pink skin; thin white arms; well-formed human breasts 

Entity Description: A young woman’s face — round, plump, and of a bright pink hue — observed emerging from the sea surface. Well-formed human breasts visible when the upper body was above the waterline. A long thin white arm periodically raised above the waves to push back long green hair. The entity dove and reappeared rhythmically over the duration of the sighting. The green hair is the most morphologically unusual and diagnostically significant feature — green hair is not a characteristic of any known marine animal and is not a standard feature of conventional mermaid iconography, arguing for genuine observed biological characteristics rather than culturally derived description. 

Hynek Classification: CE-III — Close Encounter of the Third Kind; close direct observation of an animate non-human aquatic entity over an extended period by two witnesses 

Duration: Over one hour — the witnesses observed the entity for more than sixty minutes as it dove and reappeared 

No. of Object(s): None — no craft or aerial vehicle; marine entity observed in the water 

Description of Object(s): N/A 

Shape of Object(s): N/A 

Size of Object(s): Human scale — the visible upper body portions were human in proportion 

Color of Object(s): Bright pink — skin; green — hair; white — arms 

Distance to Object(s): Close enough to shore for Miss Mackay to clearly distinguish skin tone, facial features, and hair color in morning light 

Height & Speed: At and below water surface — diving and reappearing; the arm was raised above the waves periodically 

Number of Witnesses: 2 — Miss Eliza Mackay and a companion; subsequently corroborated by a schoolmaster from Reay and other local residents 

Special Features / Characteristics: Named primary witness of high social credibility — Miss Eliza Mackay, daughter of the Reay Church of Scotland minister; over one hour of sustained observation — eliminating brief misidentification; self-described anatomical specificity in the witness’s letter — Miss Mackay confined herself to describing only what was physically visible rather than drawing on existing sea-creature mythology; bright pink skin — distinct from European or Asian human skin tones; green hair — not a characteristic of any known marine mammal, not a standard iconographic feature of mermaid tradition; the rhythmic dive-and-reappear behavior with hair-tossing suggests purposeful movement rather than injured or stranded animal behavior; corroborating witnesses — a schoolmaster from Reay and other local residents reported similar sightings from the same coastal stretch; Jerome Clark’s inclusion in Unexplained! — Clark’s systematic approach to anomalous creature documentation gives this account additional analytical credibility; the Caithness coastline location — the northernmost mainland coast of Scotland, one of the most remote stretches of the British Isles shoreline; the January date — marine misidentification events are reduced in January when tourism and recreational beach use is minimal, making the witnesses’ presence on the beach more purposeful and their observations more considered 

Case Status: Unexplained 

Source: Jerome Clark, Unexplained!; Miss Eliza Mackay’s letter 

Summary/Description: On January 12, 1809, Miss Eliza Mackay and a companion observed an aquatic entity with a round pink-hued young woman’s face, well-formed human breasts, long green hair, and thin white arms in the sea at Sandside Bay, Caithness, Scotland for over one hour. Miss Mackay documented the encounter in a detailed letter that confined itself to physical observation. A schoolmaster from Reay and other local residents subsequently reported similar sightings from the same coastline. Documented by Jerome Clark in Unexplained! 

Related Cases: 1762 CE Noirmoutier Island France Mermaid Physician Examination | 1723 CE Faeroe Islands Royal Commission Mermaid | Scottish Aquatic Entity Archive

DETAILED REPORT:

January 12, 1809. Sandside Bay is on the Caithness coast — the northernmost mainland coast of Scotland, where the land meets the Pentland Firth, one of the most powerful tidal channels in the world. The North Atlantic in January is cold, grey, and largely empty of human activity. The beach at Sandside is remote — not a tourist beach, not a commercial harbor, but a stretch of northern Scottish coastline at the edge of a small farming and fishing community.

Miss Eliza Mackay is the daughter of the minister of Reay — the Church of Scotland parish that encompasses this stretch of Caithness. She is a minister’s daughter in early 19th century Scotland, which means she is educated, observant, accustomed to precision in language, and socially positioned in a community that would hold her accountable for anything she reported. She is standing on the beach with a companion when she sees something in the sea.

A face. Round and plump and of a bright pink hue. A young woman’s face, emerging from the North Atlantic on a January morning.

It disappears. Then it reappears.

This time they can see more of the upper body. Well-formed human breasts above the waterline. A long thin white arm raises above the waves — and pushes back long green hair.

The entity dives. It reappears. It dives again. It reappears again. This cycle — dive and reappear, surface, lift the arm to push back the hair — repeats for over an hour while Miss Mackay and her companion watch from the beach.

Over an hour. Sixty minutes is the minimum threshold below which marine misidentification explanations — seals, porpoises, driftwood — become plausible. A sixty-minute sustained observation in morning light on a January beach by two witnesses who had no reason to be there except their own purposes eliminates the brief-glance misidentification category entirely. The witnesses were not startled by a momentary movement. They watched a sustained behavioral sequence for a duration that required patience on both sides — the entity repeatedly surfacing and diving in a pattern the witnesses had time to observe, analyze, and describe.

Miss Mackay’s letter — the primary documentation of this encounter — is notable for what it does not include as much as for what it does. She does not describe a fish tail. She does not reach for the conventional mermaid iconography of her era. She describes what she could see — the face, the breasts, the arm, the hair — and does not describe the entity’s lower body because the lower body was not visible above the waterline during her observation. This deliberate confinement to observable fact is the hallmark of a careful witness providing honest testimony rather than constructing a narrative.

The green hair is the most analytically distinctive feature of the Sandside account. Green hair is not a feature of any known marine mammal — not seals, not sea lions, not any species in the North Atlantic that could be responsible for an aquatic misidentification. It is not a standard feature of conventional mermaid iconography in European tradition, which typically depicts mermaids with golden or dark hair. Miss Mackay described green hair because the hair she observed was green — and the specificity of this non-conventional detail argues for genuine observed biological characteristics rather than a culturally derived narrative.

The bright pink hue of the skin is similarly analytically significant. European human skin at a distance in January light would appear pale or ruddy. A seal at the surface appears grey or brown. The specific bright pink coloration described by Miss Mackay is not the expected color of any conventional marine misidentification candidate and is not the conventional skin coloration of mermaid iconography.

Following Miss Mackay’s report, other witnesses came forward. A schoolmaster from Reay — a person of similar social standing and education to Miss Mackay herself — reported a similar sighting from the same stretch of Caithness coastline. Other local residents added their own accounts. The pattern of corroborating reports suggests the entity had been present in these waters before January 12, 1809 and was observed by multiple independent witnesses across the period.

Jerome Clark included this account in Unexplained! — his systematic compilation of the most credible and well-documented anomalous phenomena in the historical record. His inclusion reflects the account’s analytical strength: a named, credible, educated primary witness; a companion; an hour-plus duration; specific non-conventional morphological details; and subsequent corroborating witnesses from the same location.

RESEARCHER’S NOTES:

The Sandside Mermaid — Green Hair, Pink Skin, and the Minister’s Daughter Who Only Described What She Saw

• The Non-Conventional Morphological Details: The two most analytically significant features of Miss Mackay’s account — the green hair and the bright pink skin — are both non-conventional by the standards of 1809 Scottish mermaid iconography and non-attributable to any known local marine animal. These details cannot be explained as cultural contamination from existing folklore templates, because they depart from those templates. They cannot be explained as seal misidentification, because no seal has green hair or bright pink skin. They are the details that distinguish genuine observation from culturally derived narrative.
• The Deliberate Anatomical Restraint: Miss Mackay’s letter specifically described only the visible portions of the entity — she did not describe a fish tail because the lower body was not above the waterline during her observation. This deliberate restraint is the analytical marker of a careful and honest witness. A person constructing a mermaid narrative from cultural templates would describe the tail, because the tail is the defining iconographic feature of the mermaid. Miss Mackay did not describe it, because she did not see it. This negative evidence — the absence of description where a fabricator would have added it — is as analytically significant as the positive evidence.
• Duration as Misidentification Eliminator: Over one hour of sustained observation by two witnesses eliminates brief-glance misidentification as an explanation. The behavioral pattern — diving and reappearing with periodic hair-tossing — is not the behavior of any known local marine animal. The hour-long duration gave both witnesses ample time to reconsider, discuss, and revise their initial impression if there was any ordinary explanation available. They maintained their account for the full duration and afterward.
• Corroborating Witnesses: The subsequent reports from the Reay schoolmaster and other local residents extend the evidentiary base beyond Miss Mackay’s account. Multiple independent witnesses reporting similar entities from the same coastline across the same period is the strongest possible configuration for a non-human entity presence in a specific geographic location. The Sandside Bay Caithness coastline appears to have been an active observation zone for this entity type in early 1809.

Miss Eliza Mackay stood on a Caithness beach on a January morning in 1809 and watched something with a bright pink round face, well-formed human breasts, a long thin white arm, and long green hair dive and resurface in the North Atlantic for over an hour. She wrote it down in a letter that described only what she could see. The schoolmaster at Reay had seen something similar. Other local residents had too. Jerome Clark found the account and preserved it in Unexplained! The archive holds it now — the green hair that is not in the mermaid iconography, the bright pink skin that is not the color of any local marine animal, the deliberate anatomical restraint of a minister’s daughter who knew the difference between what she saw and what she was supposed to have seen, and the over-an-hour duration that gave her every opportunity to find the ordinary explanation that was not there. The sea at Sandside Bay in January 1809 had something in it that had no name. Miss Mackay gave it a description instead. That has lasted longer.