VERTCRS["HUAHINE_SAU 2001",
    VDATUM["HUAHINE_SAU 2001"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["LOCALE A CARACTERE LEGAL"],
        AREA["HUAHINE (ARCHIPEL DE LA SOCIETE)"],
        BBOX[-17,-151.5,-16.5,-150.75]],
    ID["IGNF","HUAH01"]]