There are thousands of miles of hiking trails in the National Park System. Traveler host Kurt Repanshek discusses some of the best with Michael Lanza, who keeps track of his adventures via his blog, The Big Outside. He’s also the author of Before They’re Gone, a Family’s Year-long Quest to Explore America’s Most Endangered National Parks. Also in this week's show, Kurt discusses the status of endangered Florida panthers with Elizabeth Fleming from Defenders of Wildlife. The show concludes with an interesting segment from the backcountry of Shenandoah National Park.