The Canary Islands feature the world's third-largest volcano and the largest natural underwater lava tunnel. Mount Teide, the third tallest volcano, is located in Tenerife, whereas the massive La ...

The dangerous vortex is caused by tide changes, and a vast 200m underwater spike which bounces the fast moving water upwards.

Perched on top of Santorini's sheer cliffs is a world-famous tourist industry worth millions. Underneath is the fizzing risk ...

The world's largest volcano has been discovered on the floor of the Pacific Ocean. The volcano, 1,600 kilometres east of Japan and called the Tamu Massif, is the size of the British Isles.

She has been working in journalism for seven years. Mauna Loa, one of the world's largest active volcanoes, is erupting for the first time in 38 years on Hawaii's Big Island. The eruption began in ...