landscape of thingvellir rift valley of the mid atlantic ridge and lake thingvallavatn in iceland

landscape cloudy thingvallavatn althing alafrac34 ing canyon cliff environment europe geological geology golden circle iceland green hill historical icelandic mid atlantic ridge mountain mountains nature outdoor parliament plains pingvellir rift rock scenery scenic sky south summer tectonic plates map thingvellir national park valley tourism travel volcanic afrac34 ingvallavatn ingvellir lake