See the Karst terrain and other wonders in Columbia Forest.
Columbia Forest Reserve is one of the largest protected areas of rainforest in Central America. Just north of San Jose village, the area is known for its Karst terrain, which is made up of irregular limestone, sinkholes (some are 800 feet deep), fissures, underground streams and caves. With an elevation that varies from 1,000 to over 3,000 feet, the ecosystem is very diverse. This tropical rainforest has a diverse wildlife community.