Hmm yeah like the other ladies said, it depends on your foot and what you're going to be doing. Personally, mostly I hike in sandals especially if it's toasty out. For some reason, my feet hate the idea of socks in the summer, and high boots no way! But if you will be carrying heavier packs or backpacking, the ankle support on a regular boot is helpful.

If you're doing lighter things, you can look at some trail running shoes or the lightweight hikers places carry now, or you can check out (my fav) chacos or (The Boy's fav) keens.

i LOVE hiking in sandals and haven't had problems even in rougher terrain like hiking through the desert with packs up to 30 lbs on (granted these are only hikes lasting 1-2 hours, no longer).