EXHIBIT 23.1

            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the reference to our firm under the caption "Experts" and to use
of our report dated March 1, 2004 in the Registration Statement (Form F-4) and
the related Prospectus of Ultrapetrol (Bahamas) Limited for the registration of
$180,000,000 9% First Preferred Ship Mortgage Notes due 2014.

/s/ Pistrelli, Henry Martin y Asociados S.R.L., a member of Ernst & Young Global
Buenos Aires, Argentina
January 24, 2005



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the reference to our firm under the caption "Experts" and to use
of our report dated March 19, 2004 (except Note 20, as to which the date is
November 10, 2004) in the Registration Statement (Form F-4) and the related
Prospectus of Ultrapetrol (Bahamas) Limited for the registration of $180,000,000
9% First Preferred Ship Mortgage Notes due 2014.

/s/ Pistrelli, Henry Martin y Asociados S.R.L., a member of Ernst & Young Global
Buenos Aires, Argentina
January 24, 2005