Run by the Geological Society of America, these field-based programs run days to weeks and take place in locations across the globe.  Visit the GeoVentures site and click on "Teacher Trips" to learn more about programs open to K-12 teachers, such as:

Holbrook Travel's international professional development programs bring teachers to a variety of destinations across the globe to learn about topics such as the natural history, biology, or culture of the country. In addition to field knowledge, teachers can also collaborate and share creative solutions to classroom situations through peer-to-peer exchange.