One of the longest disc golf courses in the world will soon open at North Boundary Park in Cranberry Township. It’s the product of a rapidly growing sport, but playing it won’t be just another walk in the park. In fact, participants will end up trekking through 4 miles of forest and grassy fields, plus several hundred feet of elevation gain as they snake their way up and down a hillside. “Yeah, it’s a workout,” course designer J. Gary Dropcho said on a recent afternoon devoted to building...