Before revision: The tallest mountain including submarine terrain is Mount Kea in Hawaii from its underwater base at 9,330 m (30,610 ft) and some scientists consider it to be the tallest on earth.
After revision: The tallest mountain including submarine terrain is Maura Kea in Hawaii from its underwater base at 9,330 m (30,610 ft) and some scientists consider it to be the tallest on earth.