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All Spain Túnel del Castell

Túnel del Castell

An underground passage originally constructed as an air-raid shelter during the Spanish Civil War.

Denia, Spain

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Built in the late 1930s as a response to the frequent bombings during the Spanish Civil War, this tunnel provided a safe space for locals to seek refuge from aerial attacks. Dénia, being a coastal town, was vulnerable to air raids, and the tunnel served as a critical shelter for the civilian population. Spanning the width of the hill on which the castle stands, the tunnel connects two parts of the town, offering both a practical route and a glimpse into Dénia's wartime history.

The Túnel del Castell stretches for approximately 200 meters, linking the northern part of the town near the harbor and the southern part, closer to the modern-day commercial center. Over the years, it has transformed from a war-time necessity to a peaceful pedestrian walkway, offering both locals and tourists a shortcut through the town and a shaded respite during the hot summer months.

Although it has been modernized with lighting and a smooth path, the original rough stone walls serve as a reminder of its construction during a difficult period in Spain’s history. At both ends of the tunnel, there are informative panels that give visitors more context about its construction and its use during the war.

The tunnel's proximity to the Castell de Dénia makes it a natural part of any visit to the castle. After exploring the castle's historic walls and taking in the stunning views of the Mediterranean from the hilltop, the tunnel offers a unique way to exit the area or begin a new part of your journey through the town. While the tunnel itself may not feature ornate decorations or grand architecture, its historical context makes it a meaningful stop for those interested in learning about the local impact of the Spanish Civil War.

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Know Before You Go

The Túnel del Castell connects the north and south sides of Dénia, running directly beneath the Castell de Dénia. One entrance is near the town’s main commercial area, while the other is closer to the harbor.

The tunnel is free to access and open to the public year-round, making it a convenient route for both locals and tourists. Since the tunnel is underground, it can be visited at any time of year, but it is especially useful during hot summer days when it provides a cool, shaded shortcut through the town.

The tunnel is well-lit and easily walkable, making it suitable for most visitors, including families with children. It’s a great route to take if you want to avoid the climb around the castle or need a break from the heat.

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October 7, 2025

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Spanish Civil War Tunnels
Túnel del Castell
42 Ronda de les Muralles
Denia, 03700
Spain
38.84318, 0.106028
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