This is what Geocaching at -5F/-21C looks like:

That's my brother and me. Mr Moo and I had promised to take him hiking/Geocaching over Christmas break. Between his wonky work schedule and rain every other day, the sunny but freezing cold day was the only one we could do it. Everyone thought we were crazy for going, but we all had on plenty of layers so it really wasn't as bad as it would seem. My brother had never been Geocaching before and wasn't sure what to expect. Once he made his first find, however, he was hooked.

He was so determined to find them all, we practically had to drag him away from one that proved impossible to find due to the snow cover. We had plenty of other successes during the course of the afternoon though.

The trail we hiked was an old abandoned railway. It was very scenic. And icy!