Grotte dei Saraceni
Located in Santa Marina di Salina, these caves are reached after a roughly 10 km trek with a 500 m elevation gain — challenging, but rewarding with stunning views of the Aeolian archipelago. Carved into tufa rock in the area known as "Serro dell'acqua", they were used as a cave settlement where the inhabitants of Santa Marina would take refuge during pirate raids, which explains the many interconnected rooms.