-Boston Museum of Science is the best place ever. It's amazing - and great for kids too. We used to do field trips there all the time during elementary school. I loved it.
-Childrens Museum in Boston, also amazing.
-Whale watching in cape cod
-The beaches are beautiful.
-I'm not sure how far south you'll be, but if you're starting out in/near Rhode Island, Block Island is beautiful - and great for kids too. Try the salt water taffy.
-Or Martha's Vineyard - The ferry leaves from Nantucket and takes about an hour. Go on the Flying Horses Carousel in Oak Bluffs. It's one of the oldest carousels and it's huge.
-Newport, RI
-Plimoth Plantations - definatly have to go there, it's a huge outdoor museum in mass.
- New England Aquarium, Central Warf Boston
-Walk the Freedom Trail in Boston. I enjoyed it as a kid.
-Arcadia National Park in Maine
Can you tell I grew up in New England?

We have a book called "Where should take the Kids? - The Northeast" from Fodor's which is great... and theres loads of ideas
