The Diamond Head State Monument is the third largest attraction on Oahu, with over 1,000,000 annual hikers. Conveniently located near Waikiki, it provide visitors a fun Hawaiian outdoor adventure. Hikers are rewarded when they get to the summit of Diamond Head with breathtaking and spectacular views of Oahu. The hike to Diamond Head is a considered a "moderate hike" and takes approximately 2 hours. The Diamond Package is the Visitor Center's most popular program and includes two official State of Hawaii “I Hiked Diamond Head” certificates and one official “I Hiked Diamond Head” T-shirt. T-shirts are available in medium, large and XL large sizes only. Regularly priced at $29.90, this special package price is just $14. (Saves $15.90).