multicolored rhyolite mountains in active geothermal area jokultungur, laugavegur trail, near landmannalaugar, fjallabak nature

active adventure area beige black blue bolcano breathtaking broun brown caldera central color colorful danger desert extreme field fjallabak geological geology geothermal ground highlands hiking hilly hot icelic island jokultungur landmannalaugar landscape laugavegur lava natural nature phenomenon reserve rhyolite sky smoking snow spectacular steam steaming summer thermal trekking view volcanic volcanism volcano