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Cook's Chasm at Cape Perpetua on the Oregon Coast. A dramatic, volcanic, rocky wonder with a constant exhibition of water spouts and exploding waves. Cook's Chasm is named after British Explorer Captain James Cook, who first sighted Cape Perpetua on March 7, 1778 Although we will never know for sure, it is traditionally assumed that Cook named the cape for St. Perpetua, who was martyred in Carthage for professing her faith, on March 7th, 203 A.D.