Explore Cly Castle between history and nature
Visit Cly Castle and discover its fascinating history and breathtaking views.

Where is Cly Castle located?
Cly Castle is located in the municipality of Saint-Denis, in the Aosta Valley. It stands on a rocky promontory overlooking the central valley, in a strategic position that allowed it to control trade and military routes. Its silhouette is visible from the state road, creating curiosity and a desire to climb up to its walls.
How to reach Cly Castle by car?
By car, the castle is easily reachable by taking the A5 motorway to the Châtillon–Saint-Vincent exit. From there, follow the regional road to Saint-Denis, where signs indicate the route to the castle. Parking is available in the village of Saint-Denis: from here, you need to continue on foot. The path leading to the castle is not long, but has uphill sections. It is advisable to wear comfortable shoes, as the ground is unpaved. The walk is an integral part of the experience: as you ascend, the view of the valley becomes increasingly expansive.
Is it possible to arrive by public transport?
Yes, although it requires some organization. You can arrive by train or bus to Châtillon, then take local buses to Saint-Denis. From the stop, the castle is reached with a walk. It is not the fastest solution, but it offers a slow journey that makes you appreciate even more the arrival at the medieval fortress.
What atmosphere is felt when visiting Cly Castle?
Once you arrive in front of the walls, you immediately feel the strength of this place. The castle is now partially in ruins, but the towers, bastions, and walls retain a charm reminiscent of the Middle Ages. Walking among the stones worn by time means coming into contact with a history that has spanned centuries.
What is the history of Cly Castle?
Cly Castle is one of the oldest in the Aosta Valley: its origins date back to the 12th century. It belonged to the lords of Cly, one of the most influential families in the region. Its position, perched above the valley, was ideal for controlling traffic and defending against potential attacks. Over the centuries, it lost strategic importance, until it was abandoned.
What can be seen inside Cly Castle?
Today, the castle preserves remains that allow for the reconstruction of its original layout. The walls, the ruins of the towers, and the interior spaces can be recognized. Even though not all areas are intact, this is precisely the charm: walking among the ruins and imagining the life that animated these halls.
What panorama can be admired from Cly Castle?
From the promontory, one enjoys a spectacular view of the central valley and the surrounding mountains. It is one of the most panoramic points in the area: the feeling is one of dominating the Aosta Valley from above. Spending a few minutes in silence in front of this scenery provides one of the strongest emotions of the visit.
How long does a visit to Cly Castle last?
The visit is not long: in about half an hour, the main ruins can be explored. However, it is advisable to take more time to ascend calmly along the path and stop to observe the details of the walls and the landscape. It is a place that invites contemplation and photography.
Are there events or initiatives related to Cly Castle?
In summer, there are cultural activities and historical reenactments organized to enhance the site. Concerts, performances, and special guided tours transform the ruins into a suggestive stage. Checking the events calendar can enrich the visit with an experience different from the usual.
What to see in the surroundings of Cly Castle?
The village of Saint-Denis deserves a stop: quiet streets, ancient churches, and authentic glimpses of Aosta Valley life. In the surroundings, other castles of the central valley can be visited, such as Fénis Castle or Ussel Castle. The itinerary thus becomes a journey through different eras and architectural styles, all concentrated within a few kilometers.