long exposure shot of Öxarárfoss, oxararfoss waterfall in Þingvellir ( thingvellir) national park

water rock waterfall cliff nature terrain river landscape sea coast stream wilderness rapid geology formation mountain adventure amazing arctic beautiful cascade day destination erosion europe exposure falls flow flowing iceland icelandic long national park natural nordic north outdoor outdoors powerful rocks scene scenic sky southern spectacular splashing spray summer tectonic tourism travel unesco volcanic wanderlust wild shot öxarárfoss oxararfoss þingvellir thingvellir