The Garden Isle is a relaxed reminder of old-time Hawai’i. Villages like Hanapepe invite you to get your toes in the sand at one of the island’s many beaches, or step up to a roadside truck or stand for a refreshing, neon-tinted “shave ice.” Natural splendors abound on Kauai, including sprawling Waimea Canyon, the “Grand Canyon of the Pacific,” the dramatic fluted cliffs of the NaPali Coast or t…