Ijen-vulkaan: zwaveldragers
./upload/2014/08/11/20140811005847-84cdcf9c.jpg
./upload/2014/08/11/20140811005849-c477af0d.jpg
./upload/2014/08/11/20140811005853-d9271f4c.jpg
./upload/2014/08/11/20140811005855-f19beaa7.jpg
./upload/2014/08/11/20140811005857-8bc77e65.jpg