POWER OF ATTORNEY

      Know all by these presents, that the undersigned hereby makes, constitutes
and appoints Paul
Robinson and Dick Fagerstal, or either of them signing singly, the undersigned's
true and lawful
attorney-in-fact, with full power and authority to:
      (1)	prepare, execute in the undersigned's name and on the undersigned's
behalf, and submit
to the U.S. Securities and Exchange Commission ("SEC") a Form ID, including
amendments thereto,
and any other documents necessary or appropriate to obtain codes and passwords
enabling the
undersigned to make electronic filings with the SEC of reports required by
Section 16(a) of the
Securities Exchange Act of 1934 and the rules and regulations thereunder as
amended from time to time
(the "Exchange Act");
      (2)	prepare, execute, deliver and file for and on behalf of the
undersigned, in the
undersigned's capacity as an officer and/or director of SEACOR Holdings Inc.
(the "Company"),
Forms 3, 4, and 5 in accordance with Section 16(a) of the Exchange Act;
      (3)	do and perform any and all acts for and on behalf of the undersigned
which may be
necessary or desirable to complete and execute any such Form 3, 4, or 5,
including any electronic filing
thereof, complete and execute any amendment or amendments thereto, and timely
file such form with
the United States Securities and Exchange Commission and any stock exchange or
similar authority;
      (4)	seek or obtain, as the undersigned's representative and on the
undersigned's behalf,
information on transactions in the Company's securities from any third party,
including brokers,
employee benefit plan administrators and trustees, and the undersigned hereby
authorizes any such
person to release any such information to the undersigned and approves and
ratifies any such release of
information; and
      (5)	take any other action of any type whatsoever in connection with the
foregoing which, in
the opinion of such attorney-in-fact, may be of benefit to, in the best interest
of, or legally required by,
the undersigned, it being understood that the documents executed by such
attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms
and conditions as such attorney-in-fact may approve in such attorney-in-fact's
discretion.
      The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and
perform any and every act and thing whatsoever requisite, necessary, or proper
to be done in the
exercise of any of the rights and powers herein granted, as fully to all intents
and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby
ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes,
shall lawfully do or cause to be done by virtue of this power of attorney and
the rights and powers
herein granted.  The undersigned acknowledges that the responsibility to file
the Forms 3, 4 and 5 are
the responsibility of the undersigned, and the foregoing attorneys-in-fact, in
serving in such capacity at
the request of the undersigned, are not assuming, nor is the Company assuming,
any of the undersigned's
responsibilities to comply with Section 16 of the Exchange Act.  The undersigned
further acknowledges
and agrees that the attorneys-in-fact and the Company are relying on written and
oral information
provided by the undersigned to complete such forms and the undersigned is
responsible for reviewing
the completed forms prior to their filing.  The attorneys-in-fact and the
Company are not responsible for
any errors or omissions in such filings.  The attorneys-in-fact and the Company
are not responsible for
determining whether or not the transactions reported could be matched with any
other transactions for
the purpose of determining liability for short-swing profits under Section
16(b).
      This Power of Attorney shall remain in full force and effect until the
undersigned is no longer
required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of
and transactions in
securities issued by the Company, unless earlier revoked by the undersigned in a
signed writing
delivered to the foregoing attorneys-in-fact.
      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed
as of this 25th day of February, 2010.


Signature:  /s/ Pierre de Demandolx
Print Name:  Pierre de Demandolx


STATE OF FRANCE	)
      )
COUNTY OF _____________	)
      On this 25th day of February, 2010, Pierre de Demandolx personally
appeared before me, and
acknowledged that he executed the foregoing instrument for the purposes therein
contained.
      IN WITNESS WHEREOF, I have hereunto set my hand and official seal.


/s/ Joel Bartolotti
Notary Public
My Commission Expires:

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