It’s rare that I visit a site and have an exact vision of “the shot.” But for the Strokkur geyser, neighbor to Geysir, from which all geysers are named, I knew before I left what I wanted: the pre-eruption. By chance, I got the shot I wanted on the very first try. I say by chance, because I tried several more times, over two different days, to catch it again, but failed. A fraction too early, and you barely see the bubble. A fraction too late, and the bubble has burst through the surface.
Click the link for a few of my favorites from Strokkur/script>