Etna is a representative and iconic volcanic site, it represents a rare and accessible combination of landscapes, biodiversity and very heterogeneous volcanic phenomena. Its morphology changes continuously. Its unique and changing appearance is linked to a volcanic activity that is capable of upsetting the landscape, alternating rocky layers and slopes – wild and rugged – with beautiful scoria cones and deep valleys with massive lava walls alongside lush woods. These dichotomies testify to the incessant volcanic activity that, from the very beginning, has characterized the geological landscape of Etna.