The beach marks the geographical transition point between the urban area of Peruíbe and the strictly protected Juréia-Itatins reserve.
The Guaraú River discharge creates a distinct ecosystem interaction where river currents influence water turbidity near the shoreline.
It acts as the starting point for the 'Trilha do Grajaúva,' a trail system leading into the Atlantic Forest interior.
The sand composition at this location is noted for its high mineral content derived from the erosion of the Serra do Mar slopes.
Local conservation regulations strictly limit new commercial infrastructure to maintain the environmental integrity of the adjacent park.
Praia do Guaraú serves as the primary gateway to the Juréia-Itatins Ecological Station, a massive protected Atlantic Forest reserve in Peruíbe, São Paulo. The beach features a mix of fine, dark sand and areas of deeper sediment, framed by dense tropical vegetation and rocky outcroppings. It is situated at the mouth of the Guaraú River, where the fresh and saltwater meet. Visitors often use this location as a base for ecological excursions, including treks to waterfalls and secluded beaches accessible only by trail or boat. The area is characterized by its significant biodiversity, serving as a habitat for various bird species and local fauna. Unlike urbanized beaches, the immediate surroundings remain largely defined by the conservation status of the neighboring state park.
The bridge crossing the Guaraú River near the river mouth, looking toward the beach and the coastal forest line.
Bring biodegradable insect repellent, as the proximity to the forest and river increases mosquito activity.
Check local tide tables, as certain paths into the adjacent nature reserve are only accessible or safe during low tide.
Pack all personal waste out, as waste management services are limited to preserve the protected environment.
Do not attempt to enter the restricted areas of the Juréia-Itatins Ecological Station without a registered local guide.
Access to specific trails within the neighboring Ecological Station may be restricted during periods of heavy rain for safety.
Respect noise restrictions in alignment with nature reserve guidelines; avoid feeding wildlife.