America's national parks feature some of the most breathtaking scenery in the world. From the striated cliffs of the Badlands, to the vivid blue waters of Crater Lake, to the astonishing formations of Carlsbad Caverns, a traveler could spend years upon years exploring these natural marvels. Walks of a Lifetime collects the very best short, half-day, and full-day hikes and backpacking trips found within the treasure trove of parks. With vivid photographs, short explanations of each park, and a massive appendix to help you choose a hike by location, length, difficulty, or season, this rich guidebook is a love letter to natural wonders of the United States, and the best way to experience them—walking!