Ever tried snowshoe walking? It can open up a whole new world of nature experiences, and does not require any prior skills. Put on some snowshoes, and go exploring in a completely different way.
On snowshoes, you move quietly through the forest and in the mountain. The excellent mobility allows you to visit places difficult to reach on skis, and you get to see nature from a completely different side.
Snowshoe walking is something everyone of normal mobility can handle, including young children.