Hawaii, a U.S. state, is an isolated volcanic archipelago in the Central Pacific. Its islands are renowned for their rugged landscapes of cliffs, waterfalls, tropical foliage and beaches with gold, red, black and even green sands. Of the 6 main islands, Oahu has Hawaii’s only big city, Honolulu, home to crescent Waikiki Beach and the Pearl Harbor memorials.Hawaii is also one of the largest island than rest of the island combined.