The Lake Superior Estuarium is a gateway to the headwaters of the Great Lakes. Beautiful interactive displays tell stories of the St. Louis River Estuary, Lake Superior, and the communities on their shores. The exhibit hall includes a play area for young children, maps to orient you to the largest estuary on Lake Superior, and information to help you get out and explore. FREE Special Saturday event: Family Movie in the Estuarium at 2pm! Featured movie: Ponyo (2008), Rated G - Animation, Adventure, Comedy.