this is erta ale.rce volcanic activity has been going on here for over 100 years, attracting the attention of scholars from around the world. ♪ as we approach the mountain, the lava covering the ground makes our progress a lot rougher. erta ale has tremendous power, spewing out lava over a great distance. we arrive at the village that will serve as the base camp. it is a four-hour walk from here to the summit where the lava lake is located. it is now three hours since we started walking. only a little further until we reach the crater. the lava rock beneath our feet is clearly starting to change. there are distinctive shapes which resemble crashing waves. actually, only three months earlier a major eruption occurred and a large amount of molten lava covered this area. we finally reach the volcanic crater of erta ale which holds immense power. inside the cavity, seen on the center of the screen, is the lava lake. ♪ look at that. this is the full view of the lava lake. the diameter is approximately 15 me