Aerial tours loft guests high over Oahu, arcing over Pearl Harbor and its World War II Valor in the Pacific National Monument. Other highlights include Waikiki; the volcanic cone of Lēʻahi, aka Diamond Head; and the stunning red-earth fields of the island’s leeward side. A helicopter remains the best way to see Kaliuwa’a (the Sacred Falls), which have been closed since a tragic 1999 landslide. Hikers still sneak in, despite the danger and further damage. The park has been taking an increasingly hard line about trespassers, issuing hundreds of citations annually.
