askja volcano at vatnajokull national park iceland

geology soil rock badlands terrain valley mountain plateau cliff wilderness trail landscape formation wall sand ridge canyon sea drekagil waterfall gorge vatnajökull national park vatnajokull iceland scenic landmark askja vatnajoekull desert nature road sky volcano dry hill stone arid rocks volcanic travel path view mountains morocco hills lava scenery panoramic beautiful amazing natural beauty landmarks viewpoint lookout picturesque outdoor majestic background crater clouds blue spain lanzarote cloud teide tourism red magma eruption craters