Kaua'i, also known as the "Garden Isle," is the 4th largest Hawaiian island at 562 square miles and is also the geologically oldest. It is the lushest and greenest island and home to the famous Waimea Canyon State Park and Na Pali Coast State Park known for rigorous but beautiful hiking trails along the northwest side of the island. One of the wettest parts of the world is also located here, Mount Wai'ale'ale. Don't be surprised to see oodles of wild chickens roaming around that originally arrived with Polynesian settlers. Typical Hawaiian attractions abound like snorkeling and kayaking but you can also inner tube down a former irrigation tunnel system. Rainforests, jagged cliffs, 50 miles of beaches - Kauai delivers!