1 Winter wildlife survival challenge

Wild River State Park, Saturday, 1-2 p.m.

Meet at the visitor center to learn how wildlife survive Minnesota's frigid winters at this naturalist-led learning program for all ages. You'll put your knowledge to the test outdoors to make mouse-sized shelters. Small prizes to the best designs. More information: 651-583-2125 or www.mndnr.gov/ptcalendar.

2 CCC tour by snowshoe

Whitewater State Park, Saturday, 1-3 p.m.

Meet the park naturalist at the visitor center, take a guided snowshoe tour of the park, and learn about the historic Civilian Conservation Corps camp. Bring your own snowshoes or rent a pair from the park. More information: 507-932-3007 or www.mndnr.gov/ptcalendar.

3 Winter birding for beginners

Fort Snelling State Park, Saturday, 10-11:30 a.m.

Meet at the visitor center to learn the basic techniques of bird identification during a naturalist-led winter birding hike for beginners. Binoculars and bird guides will be available. More information: 612-725-2724 or www.mndnr.gov/ptcalendar.

4 Cross-country ski-skating basics

Hyland Lake Park Reserve, Sunday, 9:30-11 a.m.

Learn beginning ski- skating techniques, including efficient edging, gliding and control. Prior classic skiing experience recommended. Otherwise, a private lesson is encouraged. $24, or $40 with ski rental. Ages 13 and older. More information: www.threeriversparks.org

5 Family snowshoeing

Baker Park Reserve,

Sunday, 1-2:30 p.m.

Explore snowbanks, search for animal tracks and warm up with cocoa afterward. Equipment provided. $6. Ages 4 and older. Children must be accompanied by an adult. More information: www.threeriversparks.org