Exhibit 32.1

      In connection with the Quarterly Report on Form 10-Q for the quarter ended
May 31, 2007 as filed by Carnival Corporation with the Securities and Exchange
Commission on the date hereof (the "Report"), I certify pursuant to 18 U.S.C.
Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, that:

(1)   The Report fully complies with the requirements of Section 13(a) or 15(d)
      of the Securities Exchange Act of 1934; and

(2)   The information contained in the Report fairly presents, in all material
      respects, the financial condition and results of operations of Carnival
      Corporation.

Date: June 29, 2007

By: /s/ Micky Arison
    --------------------
Micky Arison
Chairman of the Board of Directors
and Chief Executive Officer

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