I hope you got your permission slip signed because it's time to visit Hogsmeade.
Once again, Chestnut Hill is undergoing its transformation into the world's most famous all-wizard town for their yearly Harry Potter festival (https://chestnuthillpa.com/events/harry-potter-festival-2016/). The celebration includes lectures and seminars, themed shops and restaurants, games and activities for the kids and even a Quidditch tournament. This year it's bigger - and safer - than ever before with the entire street blocked off for most of the length of the event.
The academic conference (https://www.chc.edu/broomstick) starts Friday but it's sold out, while the festival proper begins Saturday morning.