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Contact Semester at Sea

If you don’t see what you’re looking for on our website,  don’t hesitate to send us an e-mail or give us a call.

Business Hours

Monday – Friday

8:00 am – 5:00 pm Mountain Time

  • Toll-Free: (800) 854-0195
  • Phone: (970) 238-8415
  • Fax: (970) 999-8846
2022 Holiday Office Closures

Our office will be closed on the below date(s), however, you can learn more about our program via our 24-Hour Chat Bot and online help center.

  • Monday, January 17, 2022 – Dr. Martin Luther King Jr. Day
  • Monday, May 30, 2022 – Memorial Day
  • Monday, June 20, 2022 – Juneteenth
  • Monday, July 4, 2022 – Independence Holiday
  • Tuesday, July 5, 2022 – Friday, July 8, 2022 – Summer Holiday Week
  • Monday, September 5, 2022 – Labor Day
  • Thursday, November 24, 2022 – Thanksgiving
  • Friday, November 25, 2022 – Thanksgiving Holiday
  • Monday, December 26, 2022 – Winter Holiday

Mailing Addresses

Physical Address:

Semester at Sea
2243 Centre Ave.
Suite 300
Fort Collins, CO 80526

Mailing Address:

Semester at Sea
Colorado State University
Campus Delivery 1587
Fort Collins, CO 80523-1587

Check Payment Mailing Address:

Institute for Shipboard Education
P.O. Box 842945
Dallas, TX 75284-2945

Student Help Center

Visit our online help center 24/7 to search for answers to frequently asked questions.

Contact by Department

Prospective and Admitted Students

Contact an Admissions Counselor or send an e-mail to:

Confirmed/Deposited Student Voyagers

Contact the Student Support Services Team

Lifelong Learners

Confirmed Faculty and Staff

Advancement and Alumni Affairs

Marketing, Communications, and Public Affairs

Contact Marketing


Each semester, the Institute for Shipboard Education receives requests from newspapers, magazines, and other media for information on the Semester at Sea program. If you would like to inform your hometown, college, or Greek organization about your participation on Semester at Sea, please fill out the Press Release Request Form.

Human Resources (Employment/Voyage Hiring)

General Inquiries

24-Hour Emergency Answering Service

(602) 693-0839

Please note, this phone number is only listed and active immediately before, during, and after active Semester at Sea voyages. This line is only to be used for emergencies that cannot wait until normal business hours of M-F 8:00 a.m. – 5:00 p.m. Mountain time. If it is not an emergency please contact 800.854.0195 or 970.238.8415.

Privacy Policy

The Institute for Shipboard Education (together with its parent, affiliates, successors and assigns, “ISE” or “we”) respects the privacy of visitors to the website (the “Site”). ISE collects and processes certain information from students, staff, faculty, and other applicants and participants of the Semester at Sea program. Our Privacy Policy is designed to assist you in understanding how we collect, use and safeguard the personal information you provide to us, and to assist you in making informed decisions when using the Site. This Privacy Policy only covers information collected at the Site, and does not cover any information collected at any other website or offline by ISE (unless specifically stated).

Learn More about our Privacy Policy.