Summer is the season to linger a little longer—over a waterfront lunch, a mountain hike or lawn games and cocktails at sunset. Luckily, you don’t have to go far to find that summer feeling; sometimes, an extended weekend is all it takes to feel truly away. These nine destinations are just a short nonstop flight or scenic drive from major urban hubs, making them ideal for an easy escape without sacrificing a sense of discovery. From breezy New England islands and rugged national parks to alpine r...