Columnar basalt lava with Fingal's Cave cut into it by sea, Staffa, off west coast of Mull, Inner Hebrides, Scotland, United Kingdom, Europe

Basalt columns next to Fingal's Cave on the Isle of Staffa, with Mull in the background, Inner Hebrides, Scotland, United Kingdom, Europe

The mouth of Fingal's Cave, Staffa Island, with Mull in the distance, Inner Hebrides, Scotland, United Kingdom, Europe

View of basalt columns in Fingal's Cave on the isle of Staffa, Inner Hebrides, Scotland, United Kingdom, Europe

Fingal's Cave, the hexagonal mouth of the cave with the heather-covered slopes of Mull behind, Argyll and Bute, Scotland, United Kingdom, Europe

Fingals Cauldron, Machrie Moor stone circles, Isle of Arran, North Ayrshire, Scotland, United Kingdom, Europe

Fingals Cauldron, Machrie Moor stone circles, Isle of Arran, North Ayrshire, Scotland, United Kingdom, Europe

Entrance to Fingal's Cave, columnar basalt rock, Island of Staffa, Argyllshire, Inner Hebrides, Scotland, United Kingdom, Europe

Columnar basalt lava with Fingal's Cave cut into it by sea, Staffa, off west coast of Mull, Inner Hebrides, Scotland, United Kingdom, Europe

Fingal's Cave, Isle of Staffa, Inner Hebrides, Scotland, United Kingdom, Europe

View from the Captain Cook memorial over Fingal Head in Tweed Heads, New South Wales, Australia, Pacific

Fingal's Cave, Isle of Staffa, Inner Hebrides, Scotland, United Kingdom, Europe

Fingal's Cave, Isle of Staffa, Inner Hebrides, Scotland, United Kingdom, Europe

Female cotton harlequin Bug (Tectocoris diophthalmus) guarding her eggs on Coastal Hibiscus, Fingal Heads, New South Wales, Australia, Pacific

Barnacles (Barnacle sp.) on rock in intertidal zone, Fingal Heads, New South Wales, Australia, Pacific

Female cotton harlequin bug (Tectocoris diophthalmus) guarding her eggs on Coastal Hibiscus, Fingal Heads, New South Wales, Australia, Pacific

Screw pine fruit (Pandanus tectorius), Fingal Heads, New South Wales, Australia, Pacific

Entrance to Fingal's Cave, Staffa. Note the basalt columns which are not always six-sided. Hebrides, Scotland

Aerial view of Jetty at Fingal Head in New South Wales.

Fingal's Cave, basalt island, Staffa, Inner Hebrides island, Scotland, United Kingdom, Europe