Passa Quatro National Forest, National forest in Minas Gerais, Brazil.

Passa Quatro National Forest covers 335 hectares of Atlantic Forest on a spur of the Serra da Mantiqueira, at altitudes from 946 to 1,479 metres. Its land is divided into 111 hectares of planted Araucaria angustifolia, 64.3 hectares of Pinus, 18.6 hectares of remaining native araucaria and 83.8 hectares of natural broadleaf and riverside forest. The Iporã waterfall, two ornamental lakes, a chapel, a trout hatchery and a native seedling nursery stand on the remaining 57.3 hectares.

The forest received federal protection through ordinance 562 in 1968 and was initially managed by Instituto Nacional do Pinho. This early designation made it one of the region's oldest formally protected woodland areas.

Visitors walk through the forest to experience its waterfalls and lakes as places for leisure and reflection. The site serves as a space where people connect with native vegetation and local natural beauty.

The grounds are easy to walk around, with water access and resting spots distributed throughout the site. Visitors should wear comfortable shoes and take their time to enjoy the various elevations at a relaxed pace.

The forest is part of a larger ecological corridor that allows maned wolves, ocelots, and cougars to move freely across the landscape. These large predators are rarely seen, but their presence demonstrates the ecological importance of this woodland area.