The columns
Like organ pipes.
Luk~commonswiki — CC BY-SA 4.0 · Luk~commonswiki — CC BY-SA 4.0 · Tdhendry — CC BY-SA 4.0 · Roͬͬ͠͠͡͠͠͠͠͠͠͠͠sͬͬ͠͠͠͠͠͠͠͠͠aͬͬ͠͠͠͠͠͠͠ Menkman from amsterdam, Netherlands — CC BY 2.0 · Julie Houldsworth — CC BY-SA 2.0
Fingal's Cave is a sea cave on the uninhabited island of Staffa in Scotland's Inner Hebrides, about 27 km southwest of Tobermory on the Isle of Mull in a straight line. It is known for its natural acoustics, and the National Trust for Scotland owns it as part of a national nature reserve. The cave is formed entirely of hexagonal basalt columns in a Paleocene lava flow, similar in structure to the Giant's Causeway in Northern Ireland. As the lava cooled from its upper and lower surfaces it contracted and cracked in a regular hexagonal pattern, and the cracks grew toward the centre to form the long columns seen today. The naturalist Joseph Banks brought it to wide attention in 1772, and it takes its name from the hero of an 18th-century Scottish epic poem. Dark basalt columns stand packed like giant organ pipes on either side of a wide arched mouth, and blue-green sea surges deep inside. Above the columns lies a rough rock layer topped with grass. Visitors reach the island on boat trips, then walk a path over the broken column tops into the cave to hear the waves echo. Rough seas can prevent landing, and the path is slippery, so take care.
Like organ pipes.
Of the waves.
Uninhabited.
Isle of Staffa, Inner Hebrides, Scotland
On boat trips.
Yes, along a path over the columns.