The Escuela Ecológica de Culebra is the first sustainable public school built by the Department of Education in Puerto Rico. It was designed by Abruña & Musgrave. The construction was not easy because all the building materials had to be brought into the tiny island by ferry. Culebra, is one of the four main islands of the Puerto Rican archipelago. Walleska Collazo, Director of the school comments.