A Google search for “Hawaii Hiking Blog” gets you to the #1 site: the Hiking and Backpacking in Hawaii Blog.
A place to read about hiking in Hawaii, backpacking in Hawaii, and trails in Hawaii. Read Hawaii hiking stories, Hawaii hiking information, information about Hawaii trail locations and conditions on the Big Island (Hawaii island), Maui, Oahu, Kauai, Molokai, and Lanai. Find out about the beauty of the Hawaiian Islands.
It’s good. I’ve just started working backwards through the many posts, looking for the the best hikes in Hawaii.
Dayle, the site editor, has great knowledge of the islands. He and his wife Jacqueline lead hikes for the Hawaiian Trail and Mountain Club (HTMC).
Of the best hikes in Kauai specifically, Dayle says most people name Kalalau and Awawapuhi-Nualolo.
He posted another GREAT hike on that island that appeals to me:

Photo credits: http://www.ne.jp/asahi/fu-kei
A lesser used trail but one that is equally fantastic is the Honopu Ridge Trail located in the Kokee area of Kauai. …
Along with my wife Jacque, I did this a few years ago and the payoffs at the end were fantastic views of the Na Pali Coast far below plus some awesome ridge hiking on some thrilling sections of trail. A very interesting and unexpected finding at the end of the trail are benches and lounge chairs made of sticks and slats of wood that have been lashed together. If you are like me, you’ll be amazed to find something like those manmade benches there.
This area is the domain of mountain goats (literally). Very likely, if you hike the Honopu Ridge trail you will encounter, or at least hear, these horned denizens of the cliffs. …
If you are looking for an adventure off the well-trampled paths used by most tourists, then Honopu Ridge is for you.
Honopu Ridge Trail on Kauai
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