waterfall in iceland during the autumn

active adventure autumn background basalt beautiful bjarnarfoss blue capped cascade cliff contrasty cracked crater crust dangerous dramatic earth environment europa europe explore famous field gas geology geothermal gold grass high hiking hot hverir iceland inspiration krafla landscape lava massive minerals moss mountain mudpot namafjall namaskard natural nature nordic north orange outdoors peninsula river rock scandinavia scene seasonal sheep silica skutustaoagigar sky smell snaefellsnes snow snapound abrvbar fellsnes soil solfatare spring steam stinking stream sulfur thermal tour tourism travel volcano water waterfall wilderness