​Thanks to the agreement between ESN and Cooltra,  you have a 10% discount on bike rentals, just by showing your ESNcard ( only in BCN, Ibiza and Formentera) or with the code "ESNBCN"

About ESN

Erasmus Student Network (ESN) is a non-profit international student organisation. Our mission is to represent international students, thus provide opportunities for cultural understanding and self-development under the principle of Students Helping Students.