Mount Desert Island, Maine
For a restorative vacation in a part of the country that truly knows how to celebrate summer, it's hard to beat Maine and – in particular – the coastal communities of Mount Desert Island. Vacation home rentals abound in spots like Bar Harbor, Southwest Harbor, and Tremont, and each ocean view you'll see touted online on vacation rental sites is likely to be trumped by the one that follows. Spend your days hiking Cadillac mountain, climbing the glacier-carved coastline, or whale watching around Acadia National Park before kicking back in your rental house's hot tub under a star-streaked sky. Fresh summertime foods are another Maine lure. Fresh lobster is on every menu, the best blueberries on earth are sold at roadside stands, and local markets abound.