panoramic of the blahylur crater lake near to landmannalaugar in the fjallabak nature reserve in the highlands of iceland

adventure austurbjallavatn backpacking blahylur blaiexcl hylur camping campsite climbing colorful crater eruption expedition field fjallabak geology geothermal highland highlands hikers hiking iceland icelandic journey laggon lake landmannalaugar landmark landscape lava magma mountain nature outdoor panoramic reserve rhyolite sudurland tephra trail trek trekking valley volcanic volcano