Crescent-shaped Hanalei Bay is a sparkling jewel on the north shore of Kauai, the oldest of the five major Hawaiian islands. The nearly 2 miles of white sand beach and turquoise waters include breath-taking sunsets and a historic pier originally built in 1892. A low-key quiet stretch of the Hawaiian coast, Hanalei Bay was ranked as the No. 1 beach in the United States due to its stunning views, clean tropical water, and laid-back atmosphere.