Formed over 20,000 years ago from the eruption of the Corona Volcano in northern Lanzarote, this impressive tube stretches approximately 4.7 miles, with nearly a mile submerged underwater.

The Canary Islands not only boast the third largest volcano in the world, but also the largest natural underwater lava tunnel. Mount Teide, the third largest volcano, resides in Tenerife ...

The centre also has an exhibition room, a passage that replicates a volcanic tunnel, and a large-scale model of Tenerife. One important feature of the El Portillo Visitors’ Centre is that it is ...

“Achieving high quality, nonexplosive tunnel construction with various aspects of value generated compared to traditional ...