The view from Koko Head Crater, with the lights of Hawaii Kai down below.

Koko Crater is the tallest and best preserved cinder and ash cone on Oahu. It is also thought to be the island's most recent volcanic vent.

The Koko Head Trail has a set of tracks that were used during World War II to transport military supplies up the mountain using a cable car. The top of the crater was a lookout spot and gunnery emplacement.

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