What are some good places to vacation with a 5 year old in the Northeast?

I am trying to plan an inexpensive family vacation for this summer. We live in Rhode Island so I am looking for somewhere in the Northeast we can drive to within a day or so. Any suggestions?

    Vermont is a beautiful state to visit, there's farms orchards, museums, parks, ski resorts that also have things to do in spring and summer.
      I don't know how far it is from you, but have you thought of Niagra?? Absolutely gorgeous, and if you cross over into Toronto, Canada there's lots of cool stuff to do!
      About Kathy Boiardi
      Born: Warwick, Rhode Island
      Current: Coventry, Rhode Island
      Birth: March 05
      On Moms.com since: Oct 10, 2013
      Mom to a 5 year old son. I am work at home Mom/Wife who believes family is the most important thing. My favorite thing to do is help other Moms work from home also.