Ballena school, located a few kilometers south of Uvita, is an example of sustainable architecture.  The school proves the benefits of practicing bio climatic architecture and serves as a sustainable development example for the Uvita and greater Osa region. The school uses a tropical bio climatic architecture that does not require air conditioning, containing large windows that permit natural airflow from the ocean breeze.  Not only does the school conserve energy, its design fits the natural beauty of the area.