panoramic view of colorful rhyolite volcanic mountains landmannalaugar as pure wilderness in iceland

adventure backpacking blahnukur brennisteinsalda caldera colorful creek dangerous dramatic earth expedition exploring extreme fjallabak formation geothermal highland hiking iceland journey landmannalaugar landscape laugahraun laugavegur lava moss mountaineering mountains nature outdoor panorama rainbow rhyolite ridge river scenic stream summer summit torfajoekull trail travel trek trekking trip volcano walking wander wanderlust wilderness