Nicely done. I love blogging as well, and if the geocaching hobby takes off with me as I think it will, I will probably include some geocaching posts in my blog(s).
Your posts, so far, have a pretty good ratio of pics-to-text. Enough pics to keep it interesting, and enough text to tell a story, without a snore. You should put a little warning about spoilers though, even if you're not saying the name/exact locale. Someone in your area could easily catch on and miss out on some of their own discovering. Just a thought. Good job though.