Izaña Icehouses

The Izaña Icehouses are a cluster of historic snow wells built into the slopes of Mount Izaña, on the boundary between the municipalities of La Orotava and Güímar in Tenerife. These stone-lined shafts, dug straight into volcanic rock, are unassuming at first glance, yet they preserve the memory of an entire economic activity that thrived on the island long before refrigeration existed: the harvesting and trade of mountain snow.

What were the neveros and where did they come from?

Between the 17th and 19th centuries, the three highest Canary Islands — Tenerife, Gran Canaria and La Palma — ran a genuine snow economy. On Tenerife alone, the area around Arafo and La Orotava counted as many as nineteen documented wells of this kind. The men who worked this trade, known as neveros, collected snow that settled on the high slopes each winter and carried it downhill to towns and ports before it could melt away in the lowland heat.

How did a snow well actually work?

The method was simple in concept but demanding in labour. Freshly fallen snow was packed into the dug-out shaft in compressed layers, each one separated by broom branches, pine needles and other insulating plant material. This layering slowed the melting process enough that the compacted snow — by then closer to solid ice — could be stored for months and later hauled down the mountain on mule-back before the heat could destroy it.

What was the stored ice actually used for?

Ice from Izaña was destined chiefly for the port of Santa Cruz de Tenerife, the city of La Laguna and the town of La Orotava. It served several distinct purposes: therapeutic use, such as reducing fevers and treating ailments; food preservation in an era without cold storage; and the preparation of ice cream and chilled drinks, a genuine luxury under the island's warm climate. Tenerife's ice trade even reached beyond its own shores, with exports recorded to La Palma and Gran Canaria — evidence of just how organised and profitable this seemingly rudimentary industry had become.

What does the largest well look like?

The largest surviving well, set on the northern flank of Izaña, measures roughly 6 metres across and drops about 8 metres into the ground. Its slightly sloped walls are built from stacked blocks of volcanic lava laid without mortar, a construction technique typical of Canarian building traditions that relied on locally available stone. Access to the interior is via a spiral staircase formed by basalt stones jutting directly out from the shaft wall — a solution as functional as it is elegantly simple.

Why is this site protected today?

The Izaña Icehouses were formally declared a Cultural Heritage Site on 3 March 2009, under the category of Ethnological Site (Bien de Interés Cultural, Sitio Etnológico). This designation recognises more than architectural merit alone: it honours an entire social and economic tradition, the way of life of Tenerife's highland communities who, long before mechanical refrigeration, learned to turn the island's winter snowfall into a valuable natural resource.

Frequently Asked Questions

Where exactly are the Izaña snow wells located? On the slopes of Mount Izaña, in the high-mountain area straddling the municipalities of La Orotava and Güímar in Tenerife.

Until when was this ice-well trade active? The snow and ice trade in this region operated from the 17th through the 19th century, ending once cheaper and more efficient cooling methods replaced the traditional neveros system.

Can visitors explore the site today? The wells are a protected heritage site accessible along mountain trails that cross the Izaña area, though they remain primarily archaeological and ethnographic remains rather than a fully developed tourist attraction with visitor infrastructure.

Is Izaña the only place on Tenerife with these snow wells? No — similar snow wells also existed in the Arafo area, but the Izaña complex, with its largest well reaching 8 metres in depth, is considered one of the best preserved and most representative examples of this tradition on the island.