Salt is known today for being the municipality with the lowest per capita income in Catalonia. Also one of the towns with the highest concentration of migrant population: nearly 40% of its residents are of foreign nationality. But what headlines have overlooked in recent years is that almost half of this town's surface area is still orchards and pastures. The Monar canal, parallel to the Ter river, marks the border between built-up Salt and the agricultural zone. Few facilities surpass it, except for a large high school built on fertile land. Located on the border with Girona, surrounded by greenery and with magnificent views of the Mare de Déu del Mont, lies Vallvera. A secondary and vocational training center with over 1,200 students inaugurated in 2008, it contrasts with its surroundings as a large gray sheet metal building with a concrete-filled courtyard. "In winter it's a refrigerator and in summer an oven, there's no middle ground!" laments the director, Ferran Maimir, who started this course with a direction very focused on working towards the renaturalization of the courtyard, but with a different method: having the students themselves build the shade with their hands.