Laki Craters

One hundred and thirty craters in a line, each one choked in moss so thick and green it looks like upholstery. The Laki Craters in Iceland's south highlands are the remnants of an 18th-century eruption so catastrophic it changed weather patterns across the Northern Hemisphere — and today they sit in silence, slowly being swallowed by the land they once destroyed.

The Laki eruption of 1783–1784 was one of the most devastating volcanic events in recorded history. Over eight months, a 25-kilometre fissure produced an estimated 14 cubic kilometres of basaltic lava — one of the largest lava flows of the past millennium — and released toxic gases that killed roughly a quarter of Iceland's population through famine and fluorine poisoning of livestock. The sulphur dioxide cloud drifted across Europe, causing crop failures and contributing to the exceptionally harsh winter of 1783–84, which some historians link to social unrest preceding the French Revolution. Today the 130 craters are cloaked in Icelandic moss, creating a surreal landscape of bright green mounds stretching to the horizon. Access requires a 4x4 on highland F-roads open only in July and August. From the summit of the central crater, views extend across the moss-covered lava field to Vatnajökull glacier.