Just one national park in Maine is situated on "Atlantic coast". Cadillac Mountain (1 530 ft.) is the highest mountain in North America's Atlantic coastline. Somes Sound - the only fjord in the lower 48 states. Every day twice the sea rise and falls 9 to 14 feet.
After great fire in 1947 vegetation changed dramatically. Instead of evergreens are here now quaking aspen, pin cherry, gray and paper birch - all sun-loving trees.
You can to swim on Sand Beach but water even in hot summer day is usually very cold - 55 F. But You can find warmer water by Echo Lake Beach.