News & Events Summer Camp Registration is Open! North River Wildlife Sanctuary January 11, 2019 Registration is now open for North River Nature Day Camp in Marshfield! We’re looking forward to sunshine, summertime, and days filled with adventure in the great outdoors. February Vacation Week North River Wildlife Sanctuary December 31, 2018 Looking for local winter fun during School Vacation? We offer a full week of programs featuring exciting indoor and outdoor activities that explore winter adaptations through play and adventure.