Oahu is the largest and most populated of the Hawaiian Islands, and is also known as Honolulu's Isle. It is located in the Central Pacific Ocean, and is home to the state capital of Hawaii, Honolulu. Oahu is known for its beautiful beaches, lush rainforests, and vibrant culture. It is a popular tourist destination, and is home to many of the state's most iconic landmarks, such as Diamond Head and Waikiki Beach.