Starting from Amalfi, we walk along a path that runs along beautiful lemon groves and leads us to the Valle delle Ferriere, a State Nature Reserve of 455 hectares included among the 41 biogenetic reserves registered by the Council of Europe. The Valle delle Ferriere is traversed entirely by the river Canneto, whose crystalline waters have allowed a subtropical microclimate to be preserved unchanged over time, being very rare and typical of countries with heavy rainfall like Southeast Asia. Plant species dating back to distant epochs find an ideal habitat for a rich ecosystem of inestimable value, including Woodwardia Radicans, a million-year-old fern that can be considered a living fossil. Other extremely rare plants include the Pteris Vittata, Pteris Cretica, Erica Terminalis and Hirtiflora Pinguicula. The microclimate of the oasis is also particularly suitable for amphibians such as the Spectacled Salamander. We are not in the Amazon, but just a stone’s throw from the celebrated Amalfi Coast!