Lihue is the hub of Kauai, and the island's main tourist magnet. Visit Kauai Museum, which presents an excellent overview of the island's culture and history. Or tour the sugar plantations of Grove Farm Homestead and Kilohana Plantation. Kalapaki Beach is a fine spot for swimming, surfing or just basking in the sun. Many visitors here make the trip to Wailua Falls, a spectacular waterfall that plunges 80 feet over a cliff into a sparkling pool below.