This cache will take you to see aquatic rodents! A Beaver or a Muskrat! These little guys are good swimmers, they can travel 90 meters underwater and stay submerged for more than 15 minutes. They build houses out of bulrushes, weeds and mud, with separate sleeping platforms for each member of the family. They also dig dens in the riverbank with the entrance underwater. They feed on freshwater mussels, frogs and other aquatic creatures.