In this activity, students will explore circulation cells in the vicinity of seamounts. They will be able to interpret data from a three-dimensional array of current monitors to infer an overall pattern of water circulation, hypothesize what effect an observed water circulation pattern might have on seamount fauna that reproduce by means of floating larvae, and describe the importance of measurements to verify theoretical predictions. In addition to following National Science Education Standards, this hands-on, inquiry-based activity includes focus questions, background information for teachers, links to interesting websites, and extensions. Educational levels: High school