Caño de Cortadura

Caño de Cortadura is an artificial water channel in Puerto Real, Cádiz province, linking the San Pedro river inlet to the inner waters of the Bahía de Cádiz via the Caño del Trocadero. It's a spot where two centuries of history meet the wetland landscape typical of this stretch of the Andalusian coast.

What is this place?

The channel was dug between 1812 and 1813, right after Napoleonic troops withdrew from the siege of Cádiz, which had lasted more than two years. It was built for defensive purposes, meant to protect the Fort of San Luis on Trocadero Island. The project was large in scale: more than a thousand people worked on it daily, including French prisoners of war and paid laborers from surrounding towns. The channel was planned to run just over a kilometer in length, 80 meters wide and 5 meters deep.

The site also has a place in the region's military history as the scene of the Battle of Trocadero, fought during the night of August 30-31, 1823, between French forces and Spanish liberal troops. Traces of the old fortifications remain in the surrounding landscape today, and the channel itself now blends into the network of tidal channels and marshes that define the Bahía de Cádiz.

How do you get there?

Caño de Cortadura sits within the Puerto Real municipality, near the San Pedro river, not far from the town center. It's an easy stop for anyone exploring the wetlands around the Bahía de Cádiz, an area of channels and salt marshes stretching along the coast between Puerto Real, Cádiz, and Chiclana. Local buses from central Puerto Real reach the area, since it lies within the town's public transport network.

What will you see there?

The channel itself is the main draw – a broad stretch of water framed by the marshland and salt-meadow scenery typical of the Bahía de Cádiz. In recent years, a new viewpoint (mirador) was built at Caño de Cortadura, changing the feel of this part of the Río San Pedro neighborhood. The project aimed to reclaim public space for residents and strengthen the local identity, and the platform now offers quiet views over the channel and surrounding land.

For visitors interested in history, it's also a chance to stand where a significant battle took place two centuries ago, part of the broader story of the siege of Cádiz and the Napoleonic Wars on the Iberian Peninsula.

When should you visit?

Because this is open, waterside wetland terrain, spring and autumn make for the most comfortable visits, when Andalusian temperatures are milder than in peak summer. A walk along the channel and a stop at the mirador pair well with a visit to Puerto Real itself, especially in the morning or around sunset.

Frequently Asked Questions

What is Caño de Cortadura? It's an artificial water channel in Puerto Real, built in 1812-1813 for defensive purposes, connecting the San Pedro river to the inner Bahía de Cádiz.

Why is the channel historically significant? It was dug right after the Napoleonic siege of Cádiz ended and was the site of the 1823 Battle of Trocadero between French forces and Spanish liberal troops.

What can you see there today? The channel itself, set among wetland scenery, plus a newer viewpoint (mirador) in the Río San Pedro neighborhood with views over the surrounding area.

Is it worth combining with a visit to Puerto Real? Yes – the channel is close to the town center, making it easy to fit into a walk around Puerto Real and the Bahía de Cádiz coastline.