Grotta dei Lamponi
Grotta dei Lamponi is a lava-flow cave on Etna’s northern side, near Castiglione di Sicilia, formed during the volcano’s great 1614–1624 eruption. At approximately 1,750 metres, its principal cave system extends for around 400 metres, though broader geological measurements exceed 700 metres; unstable sections and difficult access mean that entry should only be attempted with appropriate equipment and qualified personnel.
