Volunteering (sanctuary) is probably one of the best things I have ever done. I take the most pride out of volunteering, and strangely I often enjoy it more than anything else. i.e - I've worked in a cafe before, it was a job. Volunteering in the sanctuary cafe, I'm always happy, it isn't at all a chore and I take real joy out of it every single time. It's a funny thing. P: As a whole it's great life experience, really shows you so many new 'worlds' whether that's through socialising with people you wouldn't otherwise, through getting your hands dirty, or learning new skills or developing goals etc.
With volunteering abroad, just be sure that you want to do it for the right reasons. I know people who have gone to third world countries 'volunteering' and honestly, it seems as though it's just so they can post Facebook photos of them being 'selfless', and there's so much appropriation. This isn't every case, but I think it's a few of them, and it really sours the whole meaning of volunteering in struggling societies. So just have a clear goal in mind, know why you're going and stick to that. It's fine to revel in the novelty of it all, but there's a line where these things sometimes just become exploitation and crap on the real concept of volunteering there. Or, maybe I'm just being cynical. (;