Aracena and Rio Tinto Mines Day Trip from Seville

Minas de Riotinto and the Rio Tinto Mars Landscape

The Minas de Riotinto mining area is one of the oldest mining districts in Europe, worked for copper, silver and gold since Phoenician and Roman times. Centuries of digging left terraces of ochre, orange and purple rock, and a river whose water runs deep red because of dissolved iron and its natural acidity. That is why a Rio Tinto mines tour is so popular with photographers, and why the area is often called Mars on Earth.

Scientists, including space researchers, study the extreme conditions here, because the microbes living in the acidic water are a model for life on other planets. We stop at the viewpoints for photos and a short visit while the guide explains how mining shaped the villages around it. If you wonder whether the Rio Tinto mines are worth visiting, this is the most unusual scenery in the province and the highlight for many travellers.

Sierra de Aracena and the Dehesas de Sierra Morena Reserve

North of Seville the road climbs into the Sierra de Aracena y Picos de Aroche Natural Park, a green range of chestnut woods, small villages and rolling pasture. Much of it lies inside the Dehesas de Sierra Morena Biosphere Reserve, a traditional landscape where cork oaks and holm oaks shade open grassland. A Sierra de Aracena day trip is a cool, leafy contrast to the heat of Seville, especially in summer.

Black Iberian pigs live in the dehesa that roam freely under the oaks, as well as cattle, birds of prey and, in spring, wildflowers. Your guide explains how this way of farming has survived for centuries. We make a photo stop and a guided walk of around 45 minutes, so comfortable shoes are useful. Joining an organised coach tour is far easier than driving these mountain roads yourself.

Aracena Old Town and Castle

Aracena is the capital of the Sierra, a whitewashed town built on a hillside beneath a medieval castle. The fortress crowns the hill above the main square, and inside its walls stands a church with a Mudéjar tower that can be seen from far across the valley. Narrow streets, small squares and quiet corners make the town pleasant to explore on foot.

You have around two hours of free time in Aracena for lunch, which is not included in our default option, and for a walk through the old streets. Afterwards the group walks up to the castle for about half an hour of sightseeing and panoramic views over the Sierra. If you are searching for things to do in Aracena, this mix of old town, castle and cave in a single day is hard to beat.

Gruta de las Maravillas, the Cave of Wonders

The Gruta de las Maravillas lies directly beneath the hill of the castle and is one of the best-known show caves in Spain. Water dissolving the limestone over millions of years created galleries filled with stalactites, stalagmites, curtains of rock and clear blue lakes. A path of more than a kilometre leads through a series of chambers, each lit to bring out different colours and shapes.

The cave opened to visitors in the early twentieth century and remains a highlight for anyone looking for Gruta de las Maravillas tickets on a trip from Seville. The guided visit lasts about an hour, in a steady temperature that feels cool in summer and mild in winter. Entrance is included in our default option. Paths have steps and can be damp, so wear shoes with good grip.