During the course of a single year many zones in Costa Rica receive between 150-200 inches of rain which keeps everything lush and green but also swells many river valleys as the water rushes throughout the country out to sea. With so much water Costa Rica has opted to use some rivers for hydro-electric projects which provides 80% of the Costa Ricas energy needs. In addition to a renewable energy source there are dozens of a river activities in Costa Rica ranging from action packed rafting adventures to slow paced wildlife observation floats.