I loved it! in the mornings, before having breakfast, we went and collected food for our elephant.
After eating and resting, we went to the poo paper factory (wich helps to pay for the elephant's food) and helped there. At 12 they had like a elephant parade every day.
Finally in the afternoon we had the best part, ELEPHANT BATHING! :)
It was really fun and we got to "play" with the elephant after.
I personally wouldn´t go for more than one week, because is really fun, but I wouldn't consider it volunteering.
Anyway I had an amazing time with my new vounteer friends there (is better to go with a group).