Summer: Students arrive in May, June and July and may stay for up to 4 months. Typically, these students have all gone by the end of October. Most participants come from Poland, Slovakia, Bulgaria, Mexico, Russia, Jamaica, the Dominican Republic, Thailand, Singapore, South Korea, the Ukraine, Columbia, and Lithuania.

Winter: Students arrive in late November, December or early January and may stay for up to 4 months. Most participants come from the Dominican Republic, Chile, Paraguay, South Korea, Columbia, Brazil, Argentina, Peru and Ecuador.

Spring: Students arrive in March and may stay for up to 4 months. The majority of these students do not stay the full four months due to university schedules. Most participants come from Thailand and Malaysia.