Fingal's Cave
Sea cave on Staffa, famed for acoustics and hexagonal basalt columns.
Fingal's Cave is a sea cave located on Staffa, an uninhabited island in Scotland's Inner Hebrides. It is recognized for its natural acoustics and is owned by the National Trust for Scotland as part of a national nature reserve. The cave is composed entirely of hexagonally jointed columnar basalt, formed within a Paleocene lava flow. This structure is similar to that of the Giant's Causeway in Northern Ireland and Ulva. The columns resulted from cooling on the upper and lower surfaces of the solidified lava, which caused contraction and fracturing. The fractures began in a blocky tetragonal pattern before transitioning to a regular hexagonal pattern, with cracks perpendicular to the cooling surfaces. As cooling continued, these cracks extended toward the center of the flow, creating the long hexagonal columns visible today in the wave-eroded cross-section. Similar hexagonal fracture patterns occur in desiccation cracks in mud, where contraction is due to water loss rather than cooling.
Originally part of the Ulva estate of the Clan MacQuarrie until 1777, the cave was first brought to the attention of the English-speaking world by naturalist Sir Joseph Banks in 1772. It became known as Fingal's Cave after the hero of an epic poem by 18th-century Scots poet-historian James Macpherson, part of his Ossian cycle, which he claimed was based on old Scottish Gaelic poems. In Irish mythology, the hero Fingal is known as Fionn mac Cumhaill, and it is suggested that Macpherson rendered the name as "Fingal" (meaning "white stranger") through a misunderstanding of the name, which in old Gaelic would appear as "Finn." The legend of the Giant's Causeway involves Finn (or Fionn) building the causeway between Ireland and Scotland.
The cave has a large arched entrance and is filled by the sea. From April to September, local companies offer sightseeing cruises that pass the entrance. In calm conditions, visitors can land at the island's landing place and walk a short distance to the cave, where a row of fractured columns forms a walkway just above high-water level, allowing exploration on foot. From inside, the entrance frames the island of Iona across the water.
Romantic composer Felix Mendelssohn visited in 1829 and wrote an overture, *The Hebrides*, Op. 26 (also known as *Fingal's Cave Overture*), said to be inspired by the weird echoes in the cave. This overture popularized the cave as a tourist destination. Other famous 19th-century visitors included author Jules Verne, who used the cave in his book *Le Rayon Vert* (*The Green Ray*) and mentions it in *Journey to the Center of the Earth* and *The Mysterious Island*. Poets William Wordsworth, John Keats, and Alfred, Lord Tennyson, and Romantic artist J. M. W. Turner, who painted *Staffa, Fingal's Cave* in 1832, also made the trip. In 1860, German novelist Theodor Fontane visited and described the cave in his travel report *Jenseit des Tweed* (*Beyond the Tweed, Pictures and Letters from Scotland*). Queen Victoria also made the trip. The 19th-century Austro-Hungarian guitarist and composer Johann Kaspar Mertz included a piece titled *Fingals-Höhle* in his set of character pieces for guitar, *Bardenklänge*. Playwright August Strindberg set scenes from his play *A Dream Play* in a place called "Fingal's Grotta." Scots novelist Sir Walter Scott described the cave as "one of the most extraordinary places I ever beheld. It exceeded, in my mind, every description I had heard of it… composed entirely of basaltic pillars as high as the roof of a cathedral, and running deep into the rock, eternally swept by a deep and swelling sea, and paved, as it were, with ruddy marble, [it] baffles all description." Artist Matthew Barney used the cave along with the Giant's Causeway for the opening and closing scenes of his art film *Cremaster 3*. In 2008, video artist Richard Ashrowan spent several days recording the interior of the cave for an exhibition at the Foksal Gallery in Poland. One of Pink Floyd's early songs bears the location's name; this instrumental was written for the film *Zabriskie Point* but not used. Lloyd House at Caltech has a hallway ("alley") named Fingal's Cave. The Alistair MacLean novel-based film *When Eight Bells Toll*, starring Anthony Hopkins, was filmed there. It is likely that the township of Fingal, Tasmania was named after Macpherson's poetry rather than the cave itself.
Reported dimensions vary: the Wood-Nuttall Encyclopaedia (1907) gives 69 m (227 ft) deep and 20 m (66 ft) high; National Public Radio (2005) gives 45 m (150 ft) deep and 22 m (72 ft) high; Show Caves of the World gives 85 m (279 ft) deep and 23 m (75 ft) high.
- location
- Island of Staffa, Inner Hebrides, Scotland
- type
- Sea cave
- formation
- Hexagonally jointed columnar basalt in a Paleocene lava flow
- owner
- National Trust for Scotland
- known_for
- Natural acoustics and association with Mendelssohn's overture
- depth_range
- 45–85 m (reported variously)
- height_range
- 20–23 m (reported variously)
Quick Facts
- Other Name
- An Uaimh Bhinn
- Location
- Staffa, Scotland
- Geology
- Paleocene basalt flow
- Entrances
- One
- Discovery
- 1772
- Hazards
- Partially filled by the sea, slippery rocks
- Access
- Public
Facts from the source article.
Lore & Background
Fingal's Cave is a sea cave located on the uninhabited island of Staffa, part of the Inner Hebrides in Scotland. It is owned by the National Trust for Scotland as a component of a national nature reserve. The cave is formed entirely from hexagonally jointed columnar basalt within a Paleocene lava flow, structurally similar to the Giant's Causeway in Northern Ireland and Ulva. Its defining characteristic is this geometric pattern, created when cooling lava contracted and fractured, beginning as a blocky tetragonal pattern and transitioning to regular hexagonal fractures perpendicular to the cooling surfaces; these cracks extended toward the center as cooling continued, forming the long columns visible in the wave-eroded cross-section. The cave has a large arched entrance and is filled by the sea. Its dimensions vary in records: one source lists it as 69 meters deep and 20 meters high, another as 45 meters deep and 22 meters high, and a third as 85 meters deep and 23 meters high. The cave is known for its natural acoustics, which inspired Romantic composer Felix Mendelssohn to write an overture after visiting in 1829. It was brought to English-speaking attention by naturalist Sir Joseph Banks in 1772. The name derives from the hero of an epic poem by 18th-century Scots poet-historian James Macpherson, part of his Ossian cycle; in Irish mythology, this hero is Fionn mac Cumhaill, and Macpherson may have rendered the name as "Fingal" through a misunderstanding.
Reader's Guide
Fingal's Cave is a sea cave on the uninhabited island of Staffa in the Inner Hebrides, owned by the National Trust for Scotland as part of a national nature reserve. The cave is formed entirely from hexagonally jointed columnar basalt within a Paleocene lava flow, structurally similar to the Giant's Causeway in Northern Ireland and Ulva. Its columns resulted from cooling lava that contracted and fractured, beginning in a blocky tetragonal pattern and transitioning to regular hexagons, with cracks extending toward the flow's centre. This process is analogous to desiccation cracks in mud, where contraction is due to water loss rather than cooling. The cave was part of the Clan MacQuarrie's Ulva estate until 1777 and was brought to English-speaking attention by naturalist Sir Joseph Banks in 1772. It was named after the hero of James Macpherson's Ossian poems, based on Irish mythology's Fionn mac Cumhaill. The cave has a large arched entrance and is filled by the sea. Sightseeing cruises operate from April to September, and in calm conditions visitors can land and walk a row of fractured columns just above high water. From inside, the entrance frames the island of Iona. Romantic composer Felix Mendelssohn visited in 1829, writing *The Hebrides* overture inspired by the cave's echoes, which popularised it as a tourist destination. Other notable 19th-century visitors included Jules Verne, William Wordsworth, John Keats, Alfred Lord Tennyson, J. M. W. Turner, Theodor Fontane, and Queen Victoria. Sir Walter Scott called it one of the most extraordinary places he ever beheld. The cave also appears in works by August Strindberg, Matthew Barney, and Pink Floyd, and was a filming location for *When Eight Bells Toll*. Reported dimensions vary: 69 metres deep and 20 metres high per the 1907 Wood-Nuttall Encyclopaedia; 45 metres deep and 22 metres high per a 2005 National Public Radio report; and 85 metres deep and 23 metres high per Show Caves of the World.
Did You Know?
- Fingal's Cave is formed from hexagonally jointed columnar basalt within a Paleocene lava flow, similar to the Giant's Causeway.
- Romantic composer Felix Mendelssohn visited in 1829 and wrote The Hebrides, Op. 26, inspired by the weird echoes in the cave.
- Famous 19th-century visitors included Jules Verne, William Wordsworth, John Keats, Alfred, Lord Tennyson, J. M. W. Turner, Theodor Fontane, and Queen Victoria.
Geographic Setting in the Inner Hebrides
Fingal's Cave is situated in the Inner Hebrides, a group of islands off the northwest coast of Scotland. This places it within the broader Scottish cave landscape, which also includes notable formations such as Calder's Geo in Shetland, Cleeves Cove Cave in North Ayrshire, Smoo Cave in Sutherland, and Uamh An Claonaite also in Sutherland. The Inner Hebrides location distinguishes it from the mainland Scottish caves listed in the same inventory, positioning it as an island-based formation rather than a continental one. In the comprehensive cataloguing of British and Irish caves, Fingal's Cave occupies a specific geographic niche among Scotland's recognized cave sites, sharing its regional listing with formations spread across the archipelago from the far north of Shetland to the western coast of Ayrshire.
Among Scotland's Recognized Caves
In the structured listing of Scottish caves, Fingal's Cave appears alongside four other named formations: Calder's Geo in Shetland, Cleeves Cove Cave in North Ayrshire, Smoo Cave in Sutherland, and Uamh An Claonaite in Sutherland. This grouping represents the full complement of Scottish caves recognized in the inventory. Notably, Uamh An Claonaite in Assynt holds the distinction of being the deepest cave in Scotland, reaching 110 metres in depth. The fact that Fingal's Cave is listed in the same section as these geographically diverse sites—from the remote Shetland islands to the Sutherland highlands and the Ayrshire coast—underscores the variety of cave environments found across Scottish territory. Each of these formations represents a distinct geological and geographic context, yet they are united in the same national cave register.
Place in the UK Cave Inventory
The inventory draws from the work of Wilton-Jones and specifically includes caves exceeding one kilometre in length and sixty metres in depth. The list spans all four nations: England (with regions including Devon, the Mendip Hills, the Peak District, and the Yorkshire Dales), Wales (predominantly the Brecon Beacons), Scotland, and Northern Ireland (concentrated in County Fermanagh). Fingal's Cave's inclusion in this register places it within a framework that also records the Three Counties System in Yorkshire as the longest at 86.7 kilometres, Ogof Ffynnon Ddu in Wales as the deepest at 274.5 metres, and a Shetland sea cave as the largest known chamber at approximately 5,600 square metres.
The Broader Tradition of British Speleology
The cave inventory in which Fingal's Cave appears reflects a broader tradition of British and Irish speleological documentation. The bibliography associated with the listing references specialized works on regional cave systems, including volumes on the Three Counties System in the north of England, guides to the Mendip Hills in Somerset, and studies of Devon's caves. The article also cross-references related topics such as caving in the United Kingdom, the geography of the nation, a general list of caves, and a record of UK caving fatalities. Fingal's Cave, as a Scottish formation in the Inner Hebrides, sits within this wider ecosystem of cave knowledge and exploration. The fact that the list is explicitly noted as incomplete suggests that the full extent of Britain's subterranean heritage—including formations like Fingal's Cave in the Inner Hebrides—remains an ongoing subject of survey and discovery.
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