Monte di Procida falls within the perimeter of the Campi Flegrei Regional Park - a protected natural area of volcanic nature which testifies to the complex geological history of Campi Flegrei, one of the most studied in the world - and stands out for having in the locality of Torrefumo the largest crag of “Breccia Museo”. An extensive pyroclastic flow attributed to the Campana ignimbrite whose particular and evident stratification describes it well even to non-expert eyes, the geological evolution of the territory: the dynamics are visible in a continuous stratigraphic succession which in about 40,000 years led to the formation of the landscape as it appears today. Along the Coasts of Monte di Procida in the Miliscola - Torregaveta stretch, the most ancient deposits of Phlegraean volcanism emerge which, from bottom to top, they tell the main eruptive events that characterized the entire Phlegraean area. The conformation is so singular that it inspired geologist Henry James Johnston-Lavis in 1889 to observe it from nearby Procida he baptized it Breccia Museo. Every year La Breccia Museo is the subject of study visits by both amateurs and enthusiasts and students of geology coming from Italian and foreign universities.