Etna is not a mountain you visit: it is a farming district of a million people

Almost everything written about Etna treats it as an excursion: you go up, you look at the crater, you come down. That way of telling it leaves out the most important fact about the place, which is not geological but demographic.

Around a million people live on the slopes of Europe's most active volcano. Not in its shadow or at its feet: on it. And they do not live there in spite of the volcano, but because of it.

01 The scale of the volcano

The first adjustment needed is one of size. Etna is not an isolated cone in the middle of a field: it covers 1,190 square kilometres and its base measures 140 kilometres around. It is by far Italy's largest active volcano, about two and a half times taller than Vesuvius.

Its height is around 3,403 metres according to the September 2024 measurement, and that figure changes: each eruption raises or lowers it by a few metres. It is a mountain whose official height has an expiry date.

Ten municipalities border the summit directly: Adrano, Biancavilla, Belpasso, Bronte, Castiglione di Sicilia, Maletto, Nicolosi, Randazzo, Sant'Alfio and Zafferana Etnea. These are not mountain hamlets: Belpasso has around twenty-eight thousand inhabitants.

And the population has not shrunk over time, as you might expect of a dangerous place: it has grown. Over the last century and a half, density around the volcano has nearly tripled. People move closer, not away.

02 Why people go up instead of down

The explanation has two parts and both are agricultural. The first is the soil. Weathered volcanic rock produces extraordinarily fertile ground with a mineral character not found on the plain, and that fertility supports dense farming on the lower and middle slopes.

The second is altitude, and it is the one hardly ever mentioned. Sicily is a hot place: in Catania, at the foot of the volcano, the average August high is 35.5 degrees. Climbing a thousand metres up the slope changes the temperature completely and lengthens the ripening cycle of fruit.

In other words: Etna works as agricultural air conditioning on an island that needs it. On its slopes you can grow in summer what would not survive below, and that is why the volcano is full of vines, orchards and fruit trees instead of being empty.

03 The vineyard that climbs to a thousand metres

The clearest case is wine. The Etna denomination was created in August 1968 and was the first in Sicily. Not the first on Etna: the first on the whole island, which says a good deal about where serious winegrowing stood at that moment.

Its vineyards run roughly from 400 to more than 1,000 metres of altitude, planted on lava-derived soils. A thousand metres is an alpine altitude for a Mediterranean vineyard, and it only makes sense at a latitude this far south.

The detail that shows how seriously this is taken is the map. In 2011 a ministerial decree legally recognised 133 contrade, the volcano's historic plots, as additional geographical units; by 2022 there were 142. It is a land register of slopes, aspects and lava flows.

04 The pistachio picked every other year

The other emblematic crop is on the western flank, at Bronte, and its calendar is stranger still. Bronte pistachio is harvested every two years, in odd-numbered years, between late August and early September. The rest of the time the tree rests.

Harvesting is done by hand, with sacks slung round the neck, and not out of romanticism: it happens on the sciara, the cooled lava flow, ground so hard that no machine can move across it. The only thing that manages to penetrate it is the pistachio's own roots.

Each biennial campaign brings in something in the order of thirty thousand quintals. Put another way: the district has a farming economy that runs on two-year cycles and on ground a tractor cannot cross. That is not folkloric quirkiness, it is adaptation.

05 A train that goes all the way round

If proof is needed that Etna is a district and not a park, there is the Ferrovia Circumetnea. It is a narrow-gauge line built between 1889 and 1895 that runs 110 kilometres around the volcano, from Catania to Riposto, taking about three hours.

Nobody builds a hundred-and-ten-kilometre railway around an empty mountain in the late nineteenth century. It was built because there were towns to connect and harvests to move out, and it is still running for the same reason.

The route is also a three-hour geography lesson: it leaves the city, crosses the crops of the lower slope, climbs the west side to Bronte and Randazzo and comes back down the north side towards the sea. You see the volcano from all four sides.

06 And up top, snow

Above the growing line a completely different storey begins. Etna has two working ski areas: Rifugio Sapienza, on the southern flank, with a chairlift and three ski lifts, and Piano Provenzana, on the northern one, with as many again.

That is the place summed up in one image: a Mediterranean island where you can ski, with a snow-covered summit and, half an hour down the slope by car, orchards in production and a city whose average summer high passes thirty-five degrees.

Which is why it is worth reframing the visit. Instead of going up to the crater and back, it makes more sense to work across the slopes by altitude: citrus at the bottom, vines between 400 and 1,000 metres, pistachio on the western lava, then forest and then snow. Etna makes more sense as storeys than as a summit.