I have been looking at VRBO for rentals in Maine, but I'm not sure what areas to start looking in. I don't want to be too urban, but with a 1.5 year old, we also don't want to be 1 hour away from beaches, parks, grocery stores, etc. Neither my husband nor I have been to Maine even though we grew up in New England, so we really want to visit.
I have looked up by Acadia National Park since we love to hike, but that's quite a haul from CT.
Bath, Phippsburg, Freeport, Harpswell, Brunswick, Kennebunk, Falmouth are all coastal towns or very near. Large enough cities that you can get to civilization easily, but can easily find quiet areas - state parks, beaches, etc. I grew up in the Midcoast area, so let me know if you need further info!
We are renting a house in Wells, ME this September. We have family friends there and used to visit all the time. We'll have a 1.5 and a 3 year old with us. Wells is a coastal town, close to York, Ogunquit, Kennebunk. We love it there. Close to lots of stuff, lots to do, very family friendly.