Strokkur (meaning 'butter churn'), Haukadalur. A small(er) spouting hot water spring next to the great Geysir, after which all of the world spouting springs are named. Geysir (spouting to 70m) has been inactive for a few years but Strokkur (to 40m) reliably spouts for visiting tourists, although not in cue, because it spouted before I was ready with my camera.