A foggy morning greeted National Geographic Sea Bird as it sat along the Lyons Ferry State Park at the confluence of the Palouse River. After breakfast, guests departed for the shore to transfer to a shuttle to Palouse Falls State Park. The remaining guests departed for a Zodiac tour of the river and canyonlands below Palouse Falls. To access the river system, skilled drivers were required to navigate through a series of shallow areas created by the deposition of loess from the Missoula floods. Before entering the tributary, Zodiacs passed by the site of a major archeological discovery within North America. The excavation of Marmes Rockshelter revealed evidence of human occupation from as many as 11,230 years ago, including evidence of extensive trading and a cremation hearth, a common burial practice for Stone Age peoples. As Zodiacs quietly moved up the river system, several animals were discovered throughout the riparian zone, including golden eagles, porcupines, waterfowls, woodpeckers, pheasants, and even mule deer. After lunch, groups switched locations to give everyone a chance to explore the surrounding area. When guests arrived back at the ship, National Geographic Sea Bird pulled anchor and departed for the Clarkston location with only three bridges and two dams left along the journey.