Junior naturalist hike

Lake Maria State Park

10-11 a.m. Saturday

Find out how the animals at the park are preparing for winter. Registration required; call 763-878-2325 to register. (mndnr.gov)

Winter camp how-to

William O'Brien State Park

10-11:30 a.m. Saturday

Learning how to camp comfortably in the winter will allow you to see a whole new world. Join Bear Paulsen, general manager of Northstar Canoes, to learn clothing, safety and how to sleep comfortably through a cold night. He'll discuss how to choose a campsite, shelter options and winter travel. Meet at the visitor center. (651-433-0500, mndnr.gov)

Winter geocaching

Whitewater State Park

10 a.m.-noon Saturday

After a short indoor presentation, venture out to find a hidden cache. There will be snowshoeing if there is enough snow. Bring your own snowshoes or use the park's. (507-932-3007, mndnr.gov)

The coming of winter

Fort Snelling State Park

1-2 p.m. Saturday

The days are short, and the temperatures are low. Winter officially is several days off, but to wildlife, it is already here. Animals fatten up and grow longer fur. Come to find out more about the changes winter will bring. Meet at the visitor center. (612-725-2724, mndnr.gov)

Nature tech

Minnesota Valley National Wildlife Refuge

1-3 p.m. Saturday

Meet at the visitor center auditorium in Bloomington. National Park Service ranger Sharon Stiteler will talk about smartphone apps that can enhance the outdoors experience. There are apps that help identify birds, butterflies and mammals, and help choose the best place to look for them. Stiteler also will talk about how to shoot photos using a phone and spotting scope. Participants are encouraged to bring spotting scopes if they have them. (fws.gov, 952-854-5900)

Snowshoe hike

Carver Park Reserve

3-4:30 p.m. Sunday

Head to the Lowry Nature Center. Listen for animals and look for their tracks. Enjoy hot cider or cocoa afterward. Cost is $5. Program is for ages 4 and older, and children 17 years and younger must be accompanied by a registered adult. Call 763-694-7650 and reference number 111342-00.

(threeriversparks.org)

Animal tracking

Fort Snelling State Park

1-2 p.m. Sunday

Snow on the ground is the best time to see which animals are still active. Join the naturalist to learn about the animals that live here. Registration required; call 612-725-2724 to register. (mndnr.gov)