Maui is known as “The Valley Isle,” is the second largest Hawaiian island. The island Maui is known for its world-famous beaches. The sacred Iao Valley, views of migrating humpback whales, but only during winter. The sunrise and sunset from Haleakala are magnificent. Maui has been voted “Best Island in the U.S.” by Conde Nast Traveler. So Maui might be the most recommended by many people.