thingvellir national park, rocks in the river oxara over the almannagjá.

rock sea shore coast water wilderness geology river mountain nature terrain stream landscape ocean cliff lake wave rapid bay thingvellir national park rocks oxara almannagjá base waterfall öxarárfoss fall filled background beautiful beauty destination environment excursion famous golden circle green hiking iceland icelandic lava majestic natural colors outdoor route scenery scenic site tectonic tourism travel trekking view volcanic watching waves