Discover the best of Maine on your Portland and Acadia National Park Getaway! Portland, Maine, the state's largest city, is a bustling seaport town filled with art galleries, boutiques, historic sites and museums. Known for its many lighthouses, your all-encompassing harbor cruise tour will take you to see some of the most picturesque ones. Then hop in your included rental car and continue up the coast of Maine to Mount Desert Island, home to Bar Harbor and Acadia National Park. Explore Acadia National Park and its rocky beaches, granite peaks and Cadillac Mountain, the highest point in the East Coast, before returning to Portland.