-Philipsburg Manor is only 35 minutes away. Admission for children (3-17) is $6. (pehaps there's a cheaper group rate.) It's a great place! If you have good guides. I don't know if 350 guests can be accommodated at once.
its available from march but would it be interesting for 14-18 year olds? have you been?
Yes!
I've taken my family a few times over the years. I found it interesting every time I've had a good guide.