Ahupuaʻa O Kahana State Park, formerly Kahana Valley State Park, is located on the windward side of Oʻahu between Kaʻaʻawa and Punaluʻu. The park is located mauka (up hill) from Kahana Bay. It is Hawaii's only public ahupuaʻa, and it stretches from the sea to the tip of Puʻu Pauao at 2670 feet. It has a tropical climate, and it is one of the wettest areas in Oʻahu, averaging nearly 300 inches per year in parts of the valley.