Abismo Guy Collet
The Abismo Guy Collet (SP-090) is the deepest cave in South America, and the deepest in the world that is formed in quartzite. Located in a tepui in northern Brazil near the border with Venezuela, this cave was first explored by cavers in 2006 to a depth of 671 meters.
Caverna de Santana
Discovered and described at the beginning of the twentieth century as "Caverna do Rio Roncador" by the German naturalist Richard Krone, it had the potential to become one of the deepest caves in the state, but ended up being one of the most important and visited caves in the country. It is the longest cave within the state area with a horizontal projection of 8.373 meters and unevenness of 61 meters. It is widely used for environmental education tours and photography.