Mount Etna is the most active volcano in Europe, smoking almost daily and erupting through most of recorded history. It rises 3,403 metres over the eastern edge of Sicily as a broad grey cone that Sicilians simply call Mongibello, the mountain. Etna is not one crater but a system — four vents at the top and hundreds of side cones down the flanks, each the scar of an eruption that broke out low instead of high. People have lived under it and watched it burn for at least 2,700 years, and it has never settled: a crater dormant for nearly thirty years woke in 2025 and threw ash six kilometres into the sky. What you are allowed to do on the mountain changes with its mood, sometimes within a day.
Approach from the south and the ground turns lunar: black ash crunching underfoot, rust-red cinder cones, steam leaking from cracks. A cable car climbs from Rifugio Sapienza above the last trees, and from the top station authorised guides walk small groups across open ash toward the smoking summit craters. There is no shelter and nothing grows up there, the air stays cold even in August, and the zone closes at short notice when the volcano stirs. Lower down you can walk the rim of the Silvestri craters without a guide, straight from the road. After dark, when a vent is erupting, fountains of glowing lava and rivers of it sliding down the black rock are visible from kilometres away. What makes Etna strange is how fully it is lived on. Its lower flanks run green with chestnut groves and old vineyards, and two small ski stations sit on the slopes — so in winter you can ski a volcano while it erupts above the pistes.