Hanauma Bay, located on the southeast coast of Oahu, is one of the most popular tourist destinations in Hawaii. The beautiful beaches and blue-green waters are inviting areas for snorkeling and scuba diving trips, and can draw in as many as 3 million visitors a year. The bay cove is also a nature and marine wildlife preserve, with unique coral and thousands of tropical fish along the coast and an abundance of green sea turtles offshore. view all details