29. The ship spent one day in port, followed by two days at sea around the island due to limited dock availability; it then returned to dock in Port Louis on March 3–7. The morning of March 6, students were informed of another itinerary change due to quarantine concerns when arriving at European ports from North Africa. SAS concluded the Spring 2020 voyage, cancelling all South Africa related programming on March 12 and advised students to return home from Cape Town in light of a U.S. State Department worldwide travel advisory. All students were required to disembark from the World Odyssey between March 14, 2020 and March 16, 2020, were provided with resources to help them travel home, and completed the academic program remotely from March 17 and April 20. Fall 2020 On Tuesday, May 12, 2020, Semester at Sea announced that the Fall 2020 voyage would not be sailing as planned citing the COVID-19 pandemic and health and safety being the primary decision factor. The modified itinerary was scheduled to being with an online program and then continuing on with a condensed voyage beginning in late October. Voyagers were scheduled to embark in Tenerife, Canary Islands, sail on to Trinidad and Tobago, Belize, Colombia, Panama Canal Transit, Ecuador, and Easter Island (Chile) with final voyage disembarkation taking place in Puntarenas, Costa Rica. Academics Students attend classes in a number of subjects and disciplines, including humanities courses relevant to one (or more) of the countries on the itinerary, while the ship is at sea. All students are required to take an interdisciplinary, core global-studies course. Although Colorado State University is the program's academic sponsor, Semester at Sea is open to students from any university. Faculty members are drawn from colleges and universities throughout the United States and around the world. No classes are taught in port, and students can take Semester at Sea-sponsored trips or travel independently in the port country. Before arriving at a port, they are briefed on the culture and societal rules of the country they are visiting. At the port of call, guest speakers (including community leaders and American ambassadors) deliver lectures to the students and faculty. The pre-port briefing and guest lectures are intended to prepare students for their stay in the country. Lecturers and guests Notable lecturers and guests have included: Corazon Aquino Fidel Castro Tung Chee-hwa Arthur C. Clarke Fahd of Saudi Arabia