Since my buddy Allwalk and I started geocaching in October, we did most of our finds thus far during the winter months. While it can be more difficult to find some caches in the snow, there are also definite advantages to winter caching:
1) There are fewer hikers on the trails, so you don't have to worry about someone watching you as much.
2) When we did the parking on the credit series of caches, we were able to save some significant time by crossing the credit river while it was frozen!
3) quite often, you can follow other people's footprints and find the cache easier, which is helpful when you're pulling a marathon day of geocaching.
Just remember to dress warmly and perhaps bring a screwdriver or something in case you have to chip a cache out of the ice!!
Tess.