The Mosquito Hill Nature Center is open year round with both indoor and outdoor opportunities on 430 acres adjacent to the Wolf River. Inside are natural history exhibits, hands-on displays, an art gallery, themed classrooms, meeting rooms, and a library. Outside is a butterfly house that's open July through August and an observatory which is used during scheduled events. Find things to do on the event calendar or the Thrivent Art Gallery schedule. There are also various school programs available for any grade level.