The Grotta dei Mulini of Sant’Anna di Seminara: the canyon with a waterfall among the olive trees

Hidden among the olive groves of Sant’Anna, a small hamlet of Seminara in the hinterland of the Costa Viola, the Grotta dei Mulini is one of the most surprising natural places in Calabria: a gorge carved into the rock, with walls about twenty metres high covered in vegetation, reached by wading up the bed of a stream. At the end of the canyon, the water of the village’s ancient springs gathers in a freshwater waterfall that closes the gorge like an amphitheatre.

The name is no accident: for centuries this water turned the grindstones of the mills and the presses of the valley’s olive oil works, until the 1950s. The gorge, brought to attention in 2018 by Antonio Casella together with geologist Nicola Mari, can be visited today with the local association Terramala, among ruins of mills, centuries-old olive trees and paths that tell two thousand years of history, from the Roman Via Popilia to the Basilian monks. In this guide you will find what to see, how the excursion works, the history of the place and all the practical information.

A secret canyon among the olive trees: what you see at the Grotta dei Mulini

The gorge opens up suddenly, after a stretch of stream you wade up in shallow water for about a hundred metres. The rock walls rise for about twenty metres, covered in moss, ferns and vegetation that filters the light: a damp, cool environment even at the height of summer, which feels a world away from the sun-drenched olive groves just outside. At the end, the waterfall: a drop of fresh water that gathers the springs of Sant’Anna and fills the gorge with its sound.

Those who made it known call it a cave, and it is no mistake: according to Antonio Casella and geologist Nicola Mari, who explored and documented it in 2018, the cavity was probably closed originally, and its vault is thought to have collapsed over the centuries, leaving the open-air canyon you walk through today. It is a small natural sanctuary that has stayed off the tourist routes: no ticket offices, no walkways, just water, rock and silence.

The trail: from the church of San Luigi to the stream

The excursion starts near the church of San Luigi, the oldest in Sant’Anna, next to which the historic Acqua Lontana spring flows. From here the route crosses the olive groves, passes the ruins of an old watermill and descends through a stretch of woodland to the bed of the stream: the last part is done in the water, wading upstream to the mouth of the gorge and the waterfall.

The walk is not long, but it should not be underestimated: the stream bed is slippery, the route is unmarked and the entrance to the gorge is hard to find on your own. This is why it is best visited with the Terramala association, which knows the territory and organises the excursions, often together with the CAI (Italian Alpine Club) of Reggio Calabria and the hiking associations of the area. You need closed shoes that can get wet, a change of clothes and reasonably steady footing: in exchange, the valley offers one of the most authentic corners of the Costa Viola hinterland.

Why it is called Grotta dei Mulini: the water that powered the valley

The true heritage of Sant’Anna has always been water. In the past the village counted around ten springs, whose waters were channelled into a natural canal running down the valley. On that canal, until the 1950s, four olive oil presses and two mills were at work: the grindstones turned wheat into flour, the presses squeezed the olives of the area, in one of Italy’s most generous olive oil lands. It is from those six workshops that the gorge took its name.

With the arrival of electricity, the water mills and presses were abandoned and the valley fell silent again. Today, along the trail, you come across the ruins of a mill, its stone walls reclaimed by vegetation: a small piece of rural archaeology that tells of a vanished economy, when every drop from the springs had a job to do before reaching the sea.

Sant’Anna and Terramala: two thousand years of history along the Via Popilia

Sant’Anna is no ordinary village. In Roman times it was known as Decastidium, a stopping place along the Via Popilia, the great road built in the 2nd century BC to link Capua with Reggio: travellers stopped here precisely for the abundance of water. Of the ten historic springs, the Basilicò spring, the Martara and above all Acqua Lontana survive, next to the church of San Luigi; according to local tradition its water flows cool in summer and mild in winter, and for generations it was the village wash-house and meeting point.

The current name arrived with the Basilian monks, who spread the cult of Saint Anne through these valleys. The whole strip of land descending from the village towards the Petrace river is called Terramala: Italo-Greek hermits lived here, and here, between the end of the fifteenth and the early sixteenth century, the famous battles of Seminara were fought between the French and the Spanish. It is from this name that the village association took its own.

What to see nearby: Seminara, its ceramics and the Costa Viola

The excursion to the gorge pairs well with half a day among the villages. A few minutes away is Seminara, the home of Calabrian ceramics: workshops where the grotesque-faced apotropaic masks are born, the Ceramics Museum, Antonello Gagini’s Madonna of the Angels and the Sanctuary of the Madonna dei Poveri; in summer the streets come alive with the dance of the Giants Mata and Grifone. Not far away, Melicuccà is the village of the poet Lorenzo Calogero and of Basilian memories.

In half an hour by car you finally descend to the sea of the Costa Viola: Palmi with the Marinella beach and Monte Sant’Elia, the natural belvedere suspended over the Strait of Messina. That is the beauty of this corner of Calabria: in the morning you walk inside a freshwater gorge and in the afternoon you swim in one of the most beautiful seas in Italy.

How to get there, when to go and where to stay

Sant’Anna is a hamlet of Seminara, on the road climbing towards Melicuccà. By car, leave the A2 Mediterranean motorway at Palmi or Gioia Tauro and follow the signs for Seminara and then Sant’Anna: from Palmi it takes about half an hour. The most convenient railway stations are Palmi and Gioia Tauro, on the Tyrrhenian line; the reference airports are Lamezia Terme and Reggio Calabria.

The best period runs from late spring to early autumn, when the stream level is lower and the gorge offers coolness on hot days. After heavy rain the excursion should be postponed: the stream swells quickly. As for sleeping, the holiday homes between Seminara, Palmi and the Costa Viola let you combine the hinterland and the sea in the same holiday: villages and trails in the morning, beach in the afternoon.

Frequently asked questions about the Grotta dei Mulini

Is the Grotta dei Mulini a real cave?
Not exactly: it is an open-air gorge with walls of about twenty metres. According to those who documented it in 2018, it was probably a closed cavity originally, whose vault collapsed over the centuries; the name «grotta» stuck.

How demanding is the excursion?
The route is short, but the last stretch is done walking in the stream bed for about a hundred metres, on a slippery bottom. You do not need mountaineering skills, but you do need steady footing and some familiarity with trails.

Can you visit it on your own?
It is not advisable: the gorge is unmarked and the entrance is hard to find. The best way is to join a guided excursion with the Terramala association of Sant’Anna, which also organises visits together with the CAI of Reggio Calabria.

What is the best time to see the waterfall?
From late spring to early autumn, when the water is lower and the temperature inside the gorge is pleasant. After heavy rain the stream swells and the excursion should be postponed.

What should you bring?
Closed shoes with a good sole that can get wet (or water shoes), a full change of clothes, water and a light backpack. In summer also a towel: the waterfall’s water is cold, but the temptation to cool off is strong.

Is it suitable for children?
The stretch in the stream requires balance and firm feet: for children used to walking it is a small adventure; for the youngest ones it is better to ask the association’s guides in advance about the water level.