The Lord Howe Rise is a deep seaplateau which extends from south west of New Caledonia to the Challenger Plateau, west of New Zealand in the south west of the Pacific Ocean. To its west is the Tasman Basin and to the east is the New Caledonia Basin.[1] Lord Howe Rise has a total area of about 1,500,000 km2 (580,000 sq mi),[1] and generally lies about 750 to 1,200 metres under water.[2] It is part of Zealandia,[3] a much larger continent that is now mostly submerged, and so is composed of continental crust. Some have included the 3,500 m (11,500 ft) deep New Caledonia Basin as within the rise, given its continental crust origin, and this would give a larger total area of 1,950,000 km2 (750,000 sq mi).[4]