Canyon
It's the Waimea Canyon on the island of Kauai. Before I went there, I had no idea it existed. Kauai is one of the oldest of the Hawaiian Islands, far from the active volcanic zone.
Space/Science » in reply to Good point, Tom
It's the Waimea Canyon on the island of Kauai. Before I went there, I had no idea it existed. Kauai is one of the oldest of the Hawaiian Islands, far from the active volcanic zone.