VERT_CS["HUAHINE_SAU 2001",
    VERT_DATUM["HUAHINE_SAU 2001",2005,
        AUTHORITY["IGNF","REA051"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["IGNF","HUAH01"]]