closeup view of Öxarárfoss cascade in almannagjá canyon in Þingvellir national park, golden circle, iceland, in winter.

öxarárfoss closeup winter thingvellir waterfall þingvellir rainbow iceland ice frozen river rock spray splash almannagja almannagjá canyon cascade cliff close-up crack fall fissure flow golden circle gorge ice formation icicles icy landscape mid-atlantic ridge national park nature rocky slope snow snow-covered snowy stunning sunny tectonics tourism travel water water fall white öxararfoss