While you won’t find any red-hot lava lapping at the shores of Brighton, the British Isles have a surprisingly volcanic history that’s absolutely epic. Think way, way back—like 60 million years ago—when Scotland and Northern Ireland were part of a massive, crackling volcanic province. The Giant’s Causeway in Northern Ireland? That incredible geometric staircase of basalt columns? Yep, that’s ancient lava that cooled and cracked, just waiting for your Instagram shot.
You don’t have to be a geologist to spot the evidence. Head to Edinburgh, and you’ll see the Arthur’s Seat—that dramatic hill in the middle of the city—is actually the plug of an extinct volcano that last erupted 340 million years ago. Imagine the Romans marching up to that! It’s like the city built its castle on a sleeping dragon, which is both cozy and just a bit thrilling.
Where Are the Ghost Volcanos?
Let’s get specific. In England, the Lake District’s jagged peaks (like Scafell Pike) are the eroded remains of volcanoes that erupted under a tropical sea. The famous Borrowdale Volcanic Group? Yes, that’s a real name, and it sounds like a punk band that should tour with lava lamps. In Wales, the rugged mountains of Snowdonia are built on volcanic rock from the Ordovician period, when the area was a hotbed of underwater eruptions.
Scotland is the rock star of this story, though. The Isle of Skye has the Cuillin Hills, formed from magma chambers that never quite erupted—they just cooled deep underground and then got exposed. And don’t forget the Fingal’s Cave on Staffa, which inspired Mendelssohn’s overture and looks like a cathedral carved by giants.
Incredible interactive tool reveals the 68 volcanoes that once covered
