The Laguna Oca, located in the province of Formosa, just a few kilometers from the provincial capital, has become one of the most attractive destinations for those seeking tranquility and contact with nature.
It is part of the Laguna Oca and Herradura del Río Paraguay Biosphere Reserve, a protected area of over 10,000 hectares of wetlands, marshes, lagoons, and native forest recognized by UNESCO since 2001.
Its origin is due to ancient meanders of the Paraguay River that became isolated, forming calm water lagoons surrounded by dense vegetation, which favors the presence of a great diversity of species.
International Recognition
Biosphere Reserves are spaces recognized by the UNESCO program Man and the Biosphere (MaB), whose objective is to promote a balanced relationship between human communities and their natural environment.
The inclusion of Laguna Oca in this global network defines it as a key site for biodiversity conservation and the development of sustainable activities.
Activities for Visitors
Laguna Oca offers multiple options to enjoy a full day:
- Guided tours for photographic safari and bird watching.
- Beach open every day, with nautical security and recreational activities.
- Sports and shows: volleyball, soccer, dance classes, and musical shows on weekends.
- Support infrastructure: grills, restrooms, logistics center, and presence of the Ecological Police.
- Trails for walking and cycling, allowing you to explore different sectors of the reserve and maintain direct contact with the environment.

Scientific and Environmental Value
With an area of 10,500 hectares, this floodplain ecosystem hosts unique flora and fauna. The tours allow understanding how the ecosystem functions and appreciating the importance of wetlands as natural regulators.
Laguna Oca is also a space for scientific research and environmental education, where species behavior is studied and conservation is promoted.
How to Get There
From the city of Formosa, it can be accessed via National Route 11, at kilometer 1,200. The drive from the city center takes about 15 minutes. It can also be reached by urban transport or through local tourist services that include tours within the reserve.
The Laguna Oca is much more than a photogenic landscape: it is an internationally recognized natural sanctuary, combining conservation, sustainable tourism, and urban proximity. Its tranquility, biodiversity, and recreational activities make it an ideal destination for those seeking a balance between relaxation and nature in northern Argentina.



