The Top 20 Best Hiking trails in the US National Parks:

1. Nankoweap Trail – Grand Canyon National Park
2. Cadillac Mountain – Acadia National Park
3. Kilauea Iki Trail – Hawaii Volcanoes National Park
4. Hoh River Trail – Olympic National Park
5. Ramsey Cascades – Great Smoky Mountains National Park
6. The Narrows – Zion National Park
7. Bright Angel Trail – Grand Canyon National Park
8. Angels Landing – Zion National Park
9. Upper Geyser Basin – Yellowstone National Park
10. Highline Trail – Glacier National Park
11. Teton Crest Trail – Grand Teton National Park
12. Wonderland Trail – Mount Rainier National Park
13. Half Dome Hike – Yosemite National Park
14. Outer Mountain Loop – Big Bend National Park
15. Climb Mount Olympus – Olympic National Park
16. Bechler River Trail to Old Faithful – Yellowstone National Park
17. Appalachian National Scenic Trail
18. Ocean Trail – Acadia National Park
19. Upper Hawksbill Trail – Shenandoah National Park
20. Mount Cammerer Trail – Great Smoky Mountains National Park