Unaí is a municipality in the Northern Region of Minas Gerais, in the Brazilian state of Minas Gerais, in the Southeast Region of Brazil. It is located 590 km from the capital of Minas Gerais and 164 km from the federal capital. Unaí is the main municipality of its micro-region of the same name and, together with Paracatu, the most important city of the said mesoregion of Minas Gerais. Due to its geopolitical location, because it is geographically and politically linked to Brasilia and politically to Belo Horizonte, the municipality has a strong economic dynamism for a municipality that still carries the typically mineiro custom.
Buraco das Araras (GO-016) is one of the largest quartzitic caves located in the State of Goiás, Brazil. It is located about 120 kilometres (75 mi) west of Brasília and 16 kilometres (9.9 mi) from the district of Bezerra, in the municipality of Formosa. It is considered one of the largest sinkholes (dolinas) in the world.
Chapada dos Veadeiros National Park is a national park of Brazil located in the state of Goiás, on the top of an ancient plateau with an estimated age of 1.8 billion years. The park was created on January 11, 1961 by President Juscelino Kubitschek, and listed as a World Heritage Site by Unesco in 2001. It occupies an area of 655 square kilometres (253 sq mi) in the municipalities of Alto Paraíso de Goiás, Cavalcante and Colinas do Sul. The park is maintained by Chico Mendes Institute for Biodiversity Conservation.
The Witches' Cave is a cave, a nature reserve and a national natural monument in Argentina. It is located in the Moncol Hill, at 1,830 metres (6,000 ft) above mean sea level, within the Malargüe Department, in the south of Mendoza Province, about 65 kilometres (40 mi) southwest of the town of Malargüe.
Cavernas do Peruaçu National Park is a national park in the state of Minas Gerais, Brazil. It is noted for its large limestone caves.
Cavernas do Peruaçu Environmental Protection Area is a protected area in the state of Minas Gerais, Brazil.
The Castellana Caves are a karst cave system located in the municipality of Castellana Grotte, in the Metropolitan City of Bari, Apulia, southern Italy.
The Parque Nacional de las Cavernas del Río Camuy is a cave system in Puerto Rico. It is located between the municipalities of Camuy, Hatillo, and Lares in northwestern Puerto Rico, but the main entrance to the park is located in Quebrada, Camuy. The caverns are part of a large network of natural limestone caves and underground waterways carved out by the third-largest underground river in the world, the Río Camuy. The cave system was "discovered" in 1958 and was first documented in the 1973 book Discovery at the Río Camuy (ISBN 0-517-50594-0) by Russell and Jeanne Gurnee, but there is archaeological evidence that these caves were explored hundreds of years ago by the Taíno Indians, Puerto Rico's first inhabitants. Over 10 miles of caverns, 220 caves and 17 entrances to the Camuy cave system have been mapped so far. This, however, is only a fraction of the entire system which many experts believe still holds another 800 caves. Only a small part of the complex is open to the public. The 268-acre park built around the cave system features tours of some of the caves and sinkholes, and is one of the most popular natural attractions in Puerto Rico. As of January 2019, the park is still closed for Hurricane Maria recovery.
Caverna da Tapagem (SP-002), also Caverna do Diabo, is a cave located within the Jacupiranga State Park next to the Alto Ribeira Tourist State Park, in the municipality of Eldorado Paulista, Iporanga, 280 km from São Paulo, Brazil. It is the second longest cave in the state of São Paulo and also the highlight of what the local guides call "Circuit Disneyland," which is a series of family attractions that people of all ages can enjoy.
Gruta de Maquiné (MG-0243), also Lapa Nova de Maquiné, is the oldest and one of the most commercially visited caves in Brazil. It is located about 5 km (3.1 mi) from Cordisburgo and 143 km (88.9 mi) northwest of Belo Horizonte, in the State of Minas Gerais. The cave has seven huge chambers explored, amounting to 650 m (2,130 ft) (linear) and unevenness of the ground of only 18 m (59 ft). Safety measures like lighting, walkways and handrails allow a multitude of visitors to enjoy safely the wonders of the grotto where the whole journey is accompanied by an experienced local guide.
Guy Christian Collet was a French scientist, explorer and spelunker who came to live in Brazil after World War II. In the karstic region along the Ribeira valley in the State of Sao Paulo he began the exploration for caverns and grottos, becoming later founder and chairman of two speleological societies of deep respectability in the field of speleology in the country. He did work in the areas of underground biology, archeology, nutrition techniques in caves, besides having published several books and reports on the subject.
Gruta do Centenário (MG-1081), is a cave located in the municipality of Mariana, in the state of Minas Gerais, Brazil. It is the largest and deepest quartzite cave in the world, and second in the country in terms of unevenness. Other caves which are part of the same system have now been partially explored.
Gruta do Janelão (MG-199) is a limestone cave located inside the Cavernas do Peruaçu National Park, in the municipality of Januária, Minas Gerais, Brazil. This cave is the largest in the valley, totaling 4,740 m of horizontal extension and elevation of 176m. Because it has several skylights letting the sun in, small forests that resemble Japanese gardens by the delicacy and harmony are formed everywhere, all by the banks of the Peruaçu River which runs through the Janelão grotto. It has the largest stalactite already registered measuring 28 meters long.
Conjunto São Mateus (GO-011) is a complex of caves measuring 20500 meters long and considered until recently as the largest in Brazil, being replaced by the Toca da Boa Vista. It is located inside Terra Ronca State Park, in the speleologic district of São Domingos, State of Goiás. It is one of the richest in speleothems including the famous "Hall of the Pearls", where visitors should go barefoot to avoid the transposition of sediment. It houses the typical fauna of the caves, including the blind catfish. Inside the cave flows the São Mateus river, forming beaches and leaving successive halls along the way.
Sai Yok National Park is a national park in Sai Yok district, Kanchanaburi Province, Thailand. The park, home to mountains, waterfalls and caves, is part of the Western Forest Complex protected area.
The Buraco das Araras Private Natural Heritage Reserve is a privately operated conservation area in the state of Mato Grosso do Sul, Brazil. It takes its name from the Buraco das Araras, a large sinkhole that is the main feature of the reserve.
The Sumidouro State Park is a state park in the state of Minas Gerais, Brazil. The remains of the first human inhabitants of Brazil were found in the park area in the early 19th century, along with bones of now-extinct megafauna. The main attraction is the Gruta da Lapinha, a large limestone cave.
The Pireneus State Park, erroneously spelled "Pirineus", is a state park in the state of Goiás, Brazil. It protects an area of cerrado that includes the highest peak in the region, the 1,385 metres (4,544 ft) Pico dos Pireneus, on the watershed between the Plata and Tocantins river basins
The Campinhos State Park is a state park in the state of Paraná, Brazil. The environment has been much degraded by human activity and is in the process of regeneration, but there are areas of the original Araucaria Forest. The main attraction is the 500 metres (1,600 ft) long Jesuits Cave, with many speleothems such as stalagmites and stalactites.
