May 12, 2008

PUERTO RICO SERVICE ANNOUNCEMENT
Horizon Challenger Voyage CN461W Delayed into Houston

Dear Valued Customer:

The Horizon Challenger voyage CN461W will be delayed on arrival into Houston due to availability of tugs and pilots.

At this time, we anticipate the Challenger will commence cargo operations Tuesday, May 13th at 1300. Cargo availability will commence in the afternoon and continue throughout the day.

The Challenger will depart on Friday, May 16th in accordance with the new sailing schedule.

If you have any questions concerning this schedule, please contact your Horizon Lines Sales Representative or Customer Service at 1-877-678-7447.


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