Blue lava erupting from the Kawah Ijen volcano in Indonesia. The mountain contains large amounts of pure sulfur, which emit icy violet colors as it burns. | by Olivier Grunewald Follow @travelgurus for more epic travel destinations
Blue lava erupting from the Kawah Ijen volcano in Indonesia. The mountain contains large amounts of pure sulfur, which emit icy violet colors as it burns. | by Olivier Grunewald Follow @travelgurus for more epic travel destinations
