This beautiful, sheltered bay was once damaged by years of excessive use and neglect. In 1990, the City and County of Honolulu began great plans to restore Hanauma Bay. After more than a decade of efforts, Hanauma Bay was restored into a pristine marine ecosystem by reducing the number of visitors, establishing an education program, and instituting supportive restrictions. These improvements have created some amazing snorkeling and swimming opportunities. Must-do's are: visit the education center, pick up a fish I.D. card before snorkeling, and talk with the volunteers at the beach kiosk.