We walked out to the field where they grow their pumpkins, he insisted on walking all the way to the end of the field to pick his.
Then after he had a snack, he and his classmates spent about an hour chasing each other through a small hay-bale maze and playing in a corn pit.
His only tantrums were when he didn't want to sit still at the beginning, and then when we tried to leave. He head-butted me, tried to take my glasses and throw them, tried to bite me, then went limp and flopped on the ground. Aside from that, and trying to climb on the 7 foot tall pile of hay-bales with the "DO NOT CLIMB" signs on it, he was very well behaved and had a great time. :) I am even more convinced now that his teacher and aides are the greatest.
(Inserting photos from Flickr into Blogger posts is a pain in the butt.)