VERTCRS["BORA_SAU 2001",
    VDATUM["BORA_SAU 2001"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["LOCALE A CARACTERE LEGAL"],
        AREA["BORA BORA (ARCHIPEL DE LA SOCIETE)"],
        BBOX[-16.58,-151.83,-16.42,-151.67]],
    ID["IGNF","BORA01"]]