QuechuaStudent.org

From the site:

Experience the Amazon Rainforest while studying Spanish or fulfilling distribution requirements for the undergraduate degree Open to adventurous students and alumni from any college or university Applications are processed on a first come first served basis until all spaces are filled.

Courses in Quichua (Kichwa) are offered with an immersion program along the Napo River.

The Andes and Amazon Field School web page