The U.S. state known for its beaches and the city of Honolulu is Hawaii. This tropical state comprises numerous islands, each offering stunning coastlines, lush landscapes, and vibrant ecosystems. Honolulu, located on the island of Oʻahu, is the state capital and a major hub for tourism, culture, and commerce. The islands of Hawaii attract millions of visitors annually, drawn by the warm climate, beautiful beaches, and unique Polynesian culture. Hawaii's natural beauty and diverse environments make it a top vacation destination and a key location for studying marine and volcanic ecosystems.