The nut factory was an ok experience. Its about 25 minutes off the main highway. Tours are ok, but a little noisy and on the boaring side. The gift shop is nice, and has some good deals on their products too!
I liked the self-guided tour (free!) which was perfect for my 3-year old and 1-year old since we could skip things that were not interesting for them and stay extra long at things that were. And - we actually learned something! I had no idea that macadamia nuts were so hard to crack - or that they needed such hands-on care to get them through the ...