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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.

Notice: ISE staff are working remotely. 

Due to the COVID-19 pandemic and in order to ensure our staff and their families remain safe and healthy, as of March 18, 2020 all ISE home office staff will be working remotely. Unless otherwise noted, our staff will work remotely through July 12, 2021.

You may continue to contact our staff via the numbers below or you may contact us via email. All items mailed to our office will still be received and processed, however there may be some delays due to limited on-site staffing.

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
Upcoming 2021 Holiday Office Closures

Our office will be closed on the below dates, however, you can learn more about our program via our 24-Hour Chat Bot and Help Center.

  • Monday, May 31 – Memorial Day
  • Tuesday, June 8 –  World Oceans Day/National Pride Day
  • Friday, June 18 – Juneteenth (Observed)
  • Friday, July 2 – July 4th Holiday (Observed)
  • Monday, July 5 – Friday, July 9 – ISE Company Week

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

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


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

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.