This short film allows us to enter the volcanic landscape where the Canarian artist César Manrique lived and worked. With a poetic and reflective approach, En el volcán takes us into two of his most important works: Jameos del Agua and the House of Taro in Tahíche. The first, an art centre conceived as a work of land art; the second, his home for twenty years. Both are architectural interventions in nature that affect the environmental awareness of an entire territory.