4. Pacific Crest Trail.
One of the most isolated trails in the world, the Pacific Crest Trail is visited by a huge number of wanderers every year.
The journey here goes through seven national parks, numerous national forests and state parks, and unclassified areas of wilderness. It’s 2,650 miles long, and is on a long spread from California to Canada
5. Kalalau Trail
Located on the Hawaiian island of Kauai weaves, the Kalalu Trail runs for around 18 kilometers. It is widely known to be one of the most beautiful, and at the same time, dangerous treks one could possibly make.
Therefore, if you make plans of visiting it, then the best time to do so would be during the summers when the weather is comparatively dry as this area is commonly affected by rains and floods.