meeting place needed between Cape Cod and Hudson NH
I just did a peculiar Google maps search and found that Quincy Mass is about an hour from Falmouth, and Hudson NH. I know I've seen a lot of recs on this board for Quincy.
Maybe you can search the board or ask for suggestions if Quincy works for you.
Or if you increased the trip to 90 minutes each you could have more fun and go to Providence.