10 volcanic trails to do in Spain

In the heart of the so‑called “Beautiful Island” lies a vast natural amphitheatre eight kilometres in diameter. The Caldera de Taburiente is a geological colossus, surrounded by steep walls that rise to over 2,000 metres.

The classic route begins at Los Brecitos, crossing pine forests before descending into the interior, where the Barranco de las Angustias ravine runs. Along the way, you’ll encounter the Cascada de Colores – a waterfall whose mineral‑rich waters tint the rock in shades of ochre and green. It is a long and demanding route, but few trails in Spain offer the chance to walk through such a dramatic volcanic landscape.

Hidden within the Garrotxa Volcanic Zone Natural Park lies one of the most photogenic craters in Spain. Santa Margarida is almost perfectly circular and its interior – now covered with meadows – features a small Romanesque hermitage.

The route is short and accessible, making it suitable for all visitors. After descending along a path through holm oak woodland, you reach the base of the crater, where the scale of the eruption that took place thousands of years ago becomes clear.

Amid the dark volcanic landscape of Timanfaya, a cone of lighter tones stands out, seeming to defy the surrounding sea of lava. Caldera Blanca features the largest crater on Lanzarote, with a diameter of around 1,200 metres.

The circular route climbs to the rim, offering sweeping panoramic views of the National Park. Walking along its edge reveals the striking contrast between the black lava formed by historic eruptions and the ochre‑coloured interior of the crater, once used for grazing.

Just a few kilometres from Las Palmas lies this deep volcanic depression, around 200 metres below sea level. The Bandama Caldera offers two options: to walk along its rim or descend into its interior.

Descending to the base is a unique experience, with vegetation that has gradually colonised the crater and steep walls rising around it. It is a short but intense route – ideal for understanding how erosion and volcanic activity interact in the Canary Islands.

In the heart of the Campo de Calatrava region, it is possible to explore the interior of a volcano without strenuous physical effort. Cerro Gordo is a unique example, as former mining activity has exposed the internal layers of the volcanic structure.

The interpretive route follows a series of walkways that cross the volcanic vent. It offers an educational experience, allowing visitors to observe ash, lava flows and geological formations in detail – something rarely seen on open‑air volcanic routes.

This little‑known natural monument stands out because its volcanic vent has been revealed by the erosion of softer surrounding materials. The result is a volcanic plug that rises abruptly above the La Mancha landscape.

The climb to the summit is relatively short and rewards visitors with sweeping views of the Pre‑Baetic mountain ranges. In addition, the presence of jumillites – extremely rare volcanic rocks – makes the route a truly distinctive hiking experience.

Off the coast of Castellón lies an ancient volcanic crater, now an island. L’Illa Grossa forms part of the little‑known Columbretes archipelago and can only be visited on organised tours.

The trail follows the perimeter of the former crater and leads to a lighthouse at one end. The open sea, volcanic origin and protected wildlife make this route one of the most unique and lesser‑known experiences in the Spanish Mediterranean.

At the southern tip of La Palma, Teneguía was the site of one of Spain’s most recent eruptions in 1971. Today, you can walk across its black volcanic slopes and look into young craters that still retain an almost pristine appearance.

The route typically begins at the San Antonio volcano visitor centre and continues through arid terrain that contrasts sharply with the nearby vineyards of Fuencaliente. It is a journey where the transformative force of volcanic activity is clearly on display.

Also in La Garrotxa, the Croscat volcano stands out for the large cut visible in its cone – the result of past mining activity. This “cut” exposes the interior of the volcano, allowing visitors to appreciate the different layers of material ejected during its eruption.

The marked trail covers both the surroundings of the cone and nearby lava flows. It is an ideal route for those seeking a combination of landscapes, forests and geological insights in a single experience.

We return to Timanfaya to explore El Cuervo, one of the most accessible volcanic cones in the Canary Islands. This volcano was part of the major eruptions of the 18th century that transformed the island’s landscape. Today, an easy circular trail allows visitors to walk around its base and approach the side opening of the crater.

What makes this route especially unique is the possibility of walking inside the crater itself – crossing volcanic ash while reddish and black walls rise around you. It is a short route with no significant elevation, making it accessible to most visitors.