The purpose of this evaluation conducted at the Smithsonian Institution's National Museum of Natural History was to find out how visitors are behaving in, reacting to and learning from the newly reopened Sant Ocean Hall. To do this, three methods were employed: a) timing and tracking, b) exit interviews and c) focused studies for specific exhibits and experiences. A total of 553 unique visitors were included in the study, with data collection occurring in December 2008 and January 2009. Visitor groups spent an overall time of just under twenty minutes, and the five most enjoyed elements were