The Alpe della Luna Nature Reserve is located in the heart of the Apennines, on the mountains that extend between the towns of Pieve Santo Stefano, Badia Tedalda, Sansepolcro and Sestino, between silent hamlets and ridges covered with woods. This beautiful and mysterious place inspired the sublime artist Piero della Francesca five centuries ago.

The Sasso Simone and Simoncello Interregional Natural Park is a 4791-hectare territory located in the provinces of Pesaro-Urbino and Rimini, on the border with the Homonymous Tuscan Nature Reserve of the municipality of Sestino (AR), located in the heart of Montefeltro, falls in the municipalities of Carpegna, Frontino, Montecopiolo, Pian di Meleto, Pennabilli and Pietrarubbia.

A natural oasis that covers more than 1,200 hectares and has been recognised by the European Union as being of particular environmental importance. It is structured in two sections and each deals with a particular aspect of the territory of the Marecchia River valley.

The uniqueness and outstanding universal value of the Onferno Caves have led to official recognition by UNESCO as a World Heritage Site.