Kaua'i, the Garden Isle of Hawaii, retains a wild beauty beyond compare - with waterfalls that carve their way down canyons, green mountains that soar out of the sea, and a call for natural adventures that complements the island's easy aloha spirit. As a Hawaii expert and a lover of this spectacularly beautiful island, I'm sharing a Kauai Travel Guide with my top 6 things to do on the island, plus advice on where to stay, including resort reviews.