Governors Island had long been a strange military-owned freckle in the harbor—until recently, when art projects, a free ferry, and civic momentum came together. Now, with a brand-new Creative Time exhibit, an incredibly fun miniature-golf course, and 2.2 miles of unadulterated waterfront, it is becoming an enticing day trip—a mini Storm King, but with bike paths, buskers, and harborside hammocks. For more ways to enjoy the island, click here.