Kauai (also known as The Garden Island) is an island on the planet Earth, part of the nation-state of Hawaii and the northernmost island of Hawaii's archipelago. Kauai is a beautiful location, attracting many tourists to such attractions as Ka'a Beach. In the 22nd century, Jonathan Archer owned a condo on Kauai. Oan reminded him of the island. (ENT novel: Surak's Soul)