article_snippet: Mental images of the fiery depths of hell capture the world's oldest continuously active lava lake .
article_snippet: Lava sprays from the centre of the world's oldest continuously active lava lake, a rare phenomenon said to be one of just six in the world .
article_snippet: Lava illuminates, peeks through cracks and spits (left) and a haze forms above the blazing hot pool in shot by the adventurous 35-year-old . 'the overwhelming heat of the lava was immense, when I got to an edge of the crater, the overwhelming heat of the lava was unbearable.
article_snippet: Standing at the lip of the lava lake you can see why the locals see this as "The Gateway to Hell", as the incandescent bubbling lava lake hisses like some badly burned porridge cauldron, overturning and occasionally belching molten lava.'
article_snippet: The ferocity of The volcano is clear as lava splashes up from a pool that is said to have formed around 1906 .
article_snippet: Even though the lava is about 25 feet below the edge, sometimes during a burst lava lake spits the lava outside the crater, so you have to be careful not to get hit by the crater,' his said. '
article_snippet: A far less dramatic sight, the lava forms a hard, grey layer when the lava is given the chance to cool .