Won't talk about the actual field trip itself per sé, other than to say that it was highly educational, quite beautiful from an aesoteric and geological point of view, and that I was half-frozen by the time I got home, and this despite three layers of clothing. I was also quite glad that I wore an older pair of jeans, though they weren't as warm as they might have been, as my clothes are filthy and muddy.
Got home, and first thing I did was crawl into the shower and take as hot a shower as I could have. Would have taken a bath, but too dirty and needed to clean the mud and stuff off me. That, and I just wanted the hot, hot water to warm my bones, as I feel as if I will never be warm again.
Overall, a rather enjoyable experience, a lot of stuff learned, and one that I wouldn't have missed for the world, but Goddess, am I still feeling the chill of the early morning hours in my bones!