Chiribiquete National Natural Park (Spanish: Parque Nacional Natural (PNN) Serranía de Chiribiquete) is the largest national park in Colombia and the largest tropical rainforest national park in the world. It was established on 21 September 1989 and has been expanded twice, first in August 2013 and then in July 2018. The park occupies about 43,000 km2 (17,000 sq mi) and includes the Serranía de Chiribiquete mountains and the surrounding lowlands, which are covered by tropical moist forests, savannas and rivers.