Here’s a fun dadventure for those in or close to Oregon. This is a newspaper recount of an expedition made by Jennifer Margulis and her husband, GreatDad contributor, James di Properzio. If you’ve never been snowshoeing, you probably imagine you’ll crunch effortlessly atop acres of snow in your tennis-racket-like snowshoes, just like Yukon Cornelius, the blustery prospector who subdues the Abominable Snow Monster in “Rudolph the Red-Nosed Reindeer.” But when my husband and I took our three children to Crater Lake on a squally Saturday in December, we grown-ups sank into the snow, flipping the powdery stuff into the faces of those who walked behind us. The kids,...