The Monteverde Conservation League (MCL) is a Costa Rican non-profit organization, founded in 1986 with the mission of preserving, conserving, and rehabilitating tropical ecosystems and their biodiversity. Currently MCL has approximately 70 active members, who elect the Board of Directors.

Our staff is divided between the different geographic areas of the Children’s Eternal Rainforest and performs a variety of functions: customer service, environmental education, control and protection, research, reforestation, maintenance, and administration, to name a few. Our team members share a passion for the natural world and a commitment to the conservation of the Children's Eternal Rainforest.