lakes in the askja volcano caldera

activity archipelago askja beautiful blue caldera central cliff close cloud clouds coast cold colorful colourful coming countryside dramatic field fourth geology grass green grey hike hiking hill hills ice iceland iceland's island lakes landscape lava light meadow moonscape mountain mountains nature nordic oskjuvatn outdoors plateau remote ridge river road rock rural sand scandinavia scenery sea shore sky smoke spectacular steppe summer system tallest terrain travel travelling trip two vacation valley view volcanic volcano víti water waterfall wave wild wilderness öskjuvatn