Río IV (Córdoba, Argentina). Is a project developed by the end of 1993 that was opened the 1st of april 1995, beeing a model in its type because is the first to have a permanent reinsertion program, with educational activities and leisure exhibitions, making compatible the "nature theater" with scienticif and investigation works, beeing at the same time a base of the regional development as the first of its kind in South America. .