"La cordée déchaînée" is a project of exchange and meeting for adolescents coming from diverse European countries. This rather untypical and democratic exchange aims at adolescents aged between 16 years old and 18 years old, who feel concerned with the qualities of solidarity, liberty and freedom of speech. Sensible and dynamical holidays in Puyarruego (Spain) from 17 july to 29 july 2016.This exchange aims to lay the foundations of a spirit of sincere complicity between young people. Various activities are organised to enable them to catch the notion of living together, conceiving a fair, progressive and solidary new world. If some of those activities chiefly aim to developing a critical mind by young boys and girls by means of philosophical meetings, other ones aim at making them receptive to mutual respect and solidarity by means of sporting activities intending to provide them bonds of friendship and to make them feel responsible and ready to assume their own course of life. Those different meetings make it possible to check the coherence between the mentioned basic principles and the behaviour of the participators. That approach should be pursued with other activities or events organised throughout the whole year by partners of this project. In the same way, the bonds of friendship thus established should be maintained between them all as a testimony of a successful issue of that experiment.