Just an FYI, the Delaware Water Gap is quite a ways away from NYC.

She said they were going to NJ. The DWG borders PA and NJ. I grew up in the PA/NJ/NYC area, so I'm pretty familiar with it, too ;)

I mention the difficulty with theatre tickets because everytime my daughter goes to NJ to visit my mother-in-law, they try for tickets and they've had to plan their trips a year in advance if they want to see a particular show. Last time the trip was planned about 6 months in advance and tickets for Spamalot were sold out. They saw Avenue Q, instead.