Highly Recommended!
If you liked Maine you'll LOVE Nova Scotia. Beautiful scenery, friendly locals and higher speed limits than in the States. I toured there via bicycle in 1984 and returned with my girlfriend (now my wife) on a motorcycle in the early '90's. If you don't want to drive all the way you can put yourself and your car on a ferry from Portland, Maine or a high-speed cataraman from Bar Harbor, Maine (do this!). The landscape is very similar to mid-coast Maine but there are fewer summer tourists.
Some highlights:
* The Bay of Fundy has some of the best scallops on earth.
* The capitol, Halifax, is a cool city with nice museums, parks, galleries and places that serve fine Canadian beer.
* Roadside stands sell french fries smothered in GRAVY(!).
* There's a secluded beach outside of Mahone Bay on the southeast shore with white sands and Gulf Stream waters (ask the locals).
* At the northernmost tip of Nova Scotia is Cape Breton island. I've never been there but I hear it is gorgeous.
Now you've got me thinking. If you go this summer, look for a Granite Green MDX with Massachusetts plates...