OutDOOrS F rom Black Mountain, the highest depths of Mammoth Cave. From peak in the state, to the nethermost the nation’s largest fleet of houseboats at Lake Cumberland to Big Bone Lick National Historic Landmark, where North America’s biggest land mammal grazes. And from the only alpine slide in the Bluegrass State to its only bridge for bungee jumping: When it comes to living your most fabulous vacation, the sky and the subterranean world beneath your feet are the limit. Photo: Golden Pond Planetarium and Observatory, Golden Pond 8 #TravelKY