Located in the municipality of Rivodutri (Ri), the spring of St Susanna is a large pond of transparent water, immersed in a magnificent equipped green area where it is possible to relax in the shade of huge weeping willows.
The pure, cold water feeds a trout farm with particularly delicious meat and drives an old mill that is still working. Then splitting into two streams, the water of St Susanna reaches Lake Ripasottile and, via the River Velino, the Marmore Falls.
The placid swans swimming in the pond are just one of the wildlife species that inhabit the area. Large illustrative panels allow the visitor to get to know this area so rich in biodiversity: trout, crayfish and sticklebacks in the waters, grey herons, swans, little grebes and moorhens along the banks on which poplars, willows, marsh reeds and many wild flowers grow.
This unique environment is the setting for Europe's largest underwater nativity scene, which divers place every year from 8 December to 6 January and which can easily be admired from the shore given the transparency of the waters.