Outside Magazine rates hiking as one of the most underrated endurance workouts.
Quotable quote: “There’s something special about moderately paced movement through nature that leaves one feeling refreshed, renewed, and satisfied. Because of that, hiking is rarely considered a sport in the same way as trail running or mountain biking, both of which are more acutely painful and taxing on the body. And yet recent studies show that a walk in the woods — especially at the right tempo — is a superb way to build endurance and strength.”
Read all of Brad Stulberg’s article: https://www.outsideonline.com/2238741/most-underrated-endurance-workout-hiking