Last year, our family went, bundled up to the max. There were some bouncy houses. Lots of crafters, activities and local farm fresh items. And, yes, maple cotton candy. DELICIOUS!
For an additional charge, we took the Skyride up to the top of the mountain. I would not necessarily recommend you do this with wiggly children under 3, but be your own judge. My kids were so excited, and I held onto them pretty tightly since it is a ski lift. But they did great and loved the unique view above the trees, down to the valley. And we were able to walk around the top of the mountain, exploring the sights.
Adults are $10, 6-12 are $6, and under 5 get into the festival free as well as a sky ride admission. Skyrides are an additional cost, but there are some great packages that include the sky ride, food and other fun activities.
So if you are looking for a great outdoor family friendly and food friendly day, head up to Wa.... Wa... Wachusett either today or tomorrow. Maybe I'll see you there. Doors are open 10-5.