My mother and I just spent a week on Tenerife. I knew little about the place when we set out, other than that it gets lots of tourists. As it turns out, the island has a fascinating human history, a surprising variety of micro-climates, and once you get away from the tourist centres, stunning volcanic landscapes and associated ecosystems. Perched in the centre is Mount Teide, which, at 3718 metres, is the highest mountain in Spain. Looking up from the coast, its peak is often obscured by clouds. These arrive with the northeastern trade winds and are intercepted by the island’s high topography, bringing moisture to the land in the process.
Owing in part to those clouds, the way ecosystems change with elevation is quite striking. My mom and I had a chance to observe this first hand on a one-day hike in the Teno mountains.