Can you help me plan my trip, esp. those that have been to Hershey?

SO we are going to be away for 3 nights/4 days (a Sat-Tues) in the next few weeks.

Sat we plan on driving to the hotel in PA.

Sunday we plan on doing Strasburg railroad and museum

Monday Hershey Park

Tues, drive back home.

So I need help figuring out something to do on Saturday afternoon/evening, maybe the zoo? Chocolate world?

And I would love a suggestion for Tues. Preferable the way home from PA. I was thinking the Crayola factory, then saw so many bad reviews, anything else we can hit up to fill in that day?

Also, should we make time for Amish towns? We will be that direction on Sunday, but they are all closed up then. I really don't want to drive that direction again, but if it is not to be missed, I guess we could factor it in.

I really need help, I just don't know the area. Thanks so much