TANDEM is a network of innovative language schools in Chile, Germany and Spain. TANDEM schools stand out especially for the quality of their language teaching and their family atmosphere. We love teaching languages!
The primary goal of this German-Spanish school association and its members is to bring people closer to each other's languages and cultures and to facilitate personal exchange. That's why all TANDEM schools offer you a free language exchange with native speakers as a voluntary supplement to your language course.
The umbrella organisation of the TANDEM schools, TANDEM International, is a member of ALTO (Association of Language Travel Organisations).
The former TANDEM Foundation in Donostia / San Sebastián has put a lot of free material on the internet on how to organise language exchanges:
https://tandemcity.info/en/free-tandem-downloads/
More information, also about the project 'Peace-Tandem': https://tandemcity.info/