Pub crawl Friday, kid stuff Saturday.

Chestnut Hill, PA, has the following:
Quidditch Tournament at Chestnut Hill College;
Harry Potter Festival in the town of Chestnut Hill;
a shuttle connecting them;
no actual chestnuts. There is a hill.

Friday, October 17
Harry Potter Pub Crawl

Saturday, October 18
Harry Potter Festival & Quidditch Tournament

Details at chestnuthillpa.com