There's a place in Columbia, NJ (just N of I-80, right by the river), that has a wolf preserve. I used to take my kids there. They have camping and cabins. And at night, while sitting by yer campfire, you can hear the wolves howling up on the hill. Combine this with a tour of the Delaware Water Gap Nat Rec area, and I think it would make for a nice weekend. A bit closer too, for you central Jersey guys and NYC folk.