reykjadalur valley with hot springs river, lush green grass meadow, rocks and hills with geothermal steam. south iceland near

activity background blue circle color environment fumarola fumaroles geology geothermal golden grass green hike hiking hot hveragerdi hverageri iceland icelandic landscape mountains natural nature outdoor park people pool relaxation reykjadalur river rock scenic sky spring steam stream summer therma thermal tourism tourist trail travel trekking valley vivid volcanic water