Have fun during a polar vortex

I don’t live in a resort town, so there aren’t a lot of ways I can have fun in the snow (cross-country skiing through Central Park is surprisingly anti-climactic). The recent polar vortexes offered nature lovers the chance to perform some interesting experiments, such as how soap bubbles react to sub-zero temperatures in Canada. Based on this video, hanging out in -20°C (-4°F) weather can actually be kind of awesome.