Alto Ribeira Tourist State Park

The Alto Ribeira Touristic State Park () is a state park is the state of São Paulo, Brazil.
It protects a mountainous area of Atlantic Forest. It is known for its many caves.
Location.
The Alto Ribeira Touristic State Park is divided between the municipalities of Apiaí and Iporanga in São Paulo.
It has over 350 caves, many waterfalls, trails and archaeological and paleontological sites.
There are traditional and "quilombola" communities in the park.
It lies from São Paulo 
There are four visitor centers and support for enforcement activities and research in order to safeguard and protect the rich natural heritage of the upper Ribeira region, represented by the important biodiversity of the remnants of the Atlantic Forest and its paleontological, archaeological, and historical sites.
It is home to one of the most important speleological provinces in Brazil with more than 300 caves registered by the SBE - Sociedade Brasileira de Espeleologia.
History.
The Alto Ribeira Touristic State Park is one of the oldest parks in the state of São Paulo, created by state decree 32,283 of 19 May 1958.
From the 1990s it became popular for adventure sports such as climbing, rafting and cycling and for environmental education, photography and observation of nature.
São Paulo state decree 58.148 of 21 June 2012 created the Paranapiacaba Conservation Units Mosaic, consisting of the Alto Ribeira Touristic State Park, Intervales State Park, Carlos Botelho State Park, Xitué Ecological Station, Nascentes do Paranapanema State Park and the Serra do Mar Environmental Protection Area in the municipalities of Eldorado, Sete Barras, Tapiraí, Juquiá, Ribeirão Grande and Capão Bonito.
The purpose was to promote integrated and participatory management of the conservation units, and to seek to guarantee conservation of the areas covered.
Environment.
There are a great many streams and rivers.
Flora include the Palmito Juçara ("Euterpe edulis") and many species of bromeliads and orchids.
Birds species include fasciated tiger heron ("Tigrisoma fasciatum") and ornate hawk-eagle ("Spizaetus ornatus").
Large mammals include lowland paca ("Cuniculus paca"), South American tapir ("Tapirus terrestris") and howler monkeys.
Facilities.
The park has four visitor centers.
Most tours of the parks require a local guide.
The Ouro Grosso center is a base for courses on environmental monitoring, seminars and meetings and provides accommodation for public school students.
Other than the caves, attractions include: 
Caves.
The caves are the main attraction.
Some have stairs, walkways and bridges to facilitate access, some contain large rivers.
Only four are open to visitors.
Its location in the Atlantic Forest encourages visitors to explore a variety of environments, including rivers, waterfalls, and caves. Its wide range of itineraries may please the most demanding of both beginners and veterans. It has four main areas or units for tourist visitation: Nucleo Santana, Ouro Grosso, Casa de Pedra and Caboclos. The most frequented are Santana and Ouro Grosso.
Open for visitation.
The caves which are open for visitation read as follows: