Thanks for all the good advice on babysitting our niece and nephew! The ideas here were great. We don't have a cider press like Dlevine so we visited a cidery where the kids saw the apple orchard and drank cider with lunch. When we got home, we picked apples from our tree.
Downey's Farm worked out well - only 30 minutes away and just $8/person. I suspect it wouldn't be exciting enough for urban kids of the same age who have experienced $200 family trips to Canada's Wonderland but it seemed entertaining for 2-3 hours. Our niece liked it because there were no line-ups for the various attractions, which included a corn maze, big slide, pedal go karts, mini-golf, a big trampoline-cushion thing, wagon ride, petting zoo and other things. If we'd had more time, we could have picked apples and spent more time navigating through the corn maze.
Their newest attraction is a hamster wheel to tire kids out. Perfect.
Trampoline-cushion thingie
A cow not as scary as the real cow was
In the petting zoo. They have a llama named "Dally".
Corn maze - I wonder if we could get permission to orienteer here.
As JayXC suggested, go karts were a hit - although I don't think he meant the pedal-powered kind. They came back here a second time. 'Bent had to try it too.