"I had never managed to capture a force of nature as stunning as a volcanic eruption", writes AFP photographer Martin Bernetti. "Chile has some 90 active volcanoes that roar to life from time to time with the kind of raw natural power that every photographer dreams of catching. But the country is extremely long and narrow, and domestic flights are usually cancelled whenever volcanic activity picks up. That means getting to an eruption usually takes hours of driving. And when you get there, the volcano will most likely have calmed down..."