re: Maine vacation

I realize this is an older thread, and OP's June trip is past, but for those still planning a trip to Maine, here is what we did one June several years ago:

We flew into Bangor, rented a car and went to Bar Harbor for 4 days. Stayed at the Bar Harbor Inn, right on the water. Explored that region, Acadia National Park, hit lobster pounds, etc. Great area.

Then we drove down the coast over the course of a few days, stopping in Camden, Rockland, Portland (took ferry to Peaks Island for a day visit), etc. along the way. Wife photographed every lighthouse and got some great pics that are still hanging on our walls.

In Kennebunkport, a waiter suggested we head over to NH and check out the White Mountains National Forest, so we did that and went up Mount Washington (very cool) to see the location of the world's worst weather. Worked our way back to Portland and flew home.

We went in early June, and we learned that (at least back then), their tourist season does not really start until about June 15. A couple of things were still closed for winter, and school was still in session, but hotel rooms and cabins were readily available; we went with no reservations after Bar Harbor and had no problem. One landlord told us that every cabin was available for us, but she was 100% booked starting the week after. Plan accordingly.