States Mona Canyon, off the coast of western Puerto Rico Nazaré Canyon, off the coast of Portugal Whittard Canyon, off the southwest coast of Ireland Wilmington Canyon, off the coast of Delaware, the United States Indian Ocean Ganges Canyon, extending from the Ganges off the coast of India Indus Canyon, extending from the Indus River off the coast of Pakistan Perth Canyon, extending from the Swan River off the coast of Fremantle. Western Australia Pacific Ocean Bering Canyon, in the Bering Sea near the Aleutian Islands, Alaska, the United States Kaikoura Canyon, off the coast of the Kaikoura Peninsula, New Zealand La Jolla Canyon, off the coast of La Jolla, California Monterey Canyon, off the coast of central California, the United States Pribilof Canyon, in the Bering Sea, southeast of the Pribilof Islands, Alaska Scripps Canyon, off the coast of La Jolla, southern California Zhemchug Canyon, in the central Bering Sea between the Aleutian Islands of Alaska and the Kamchatka Peninsula of Russia; the largest submarine canyon in the world based on drainage area Black Sea Danube Canyon, off the coast of Romania References Lists of landforms