The Siriú River lagoon acts as a nursery for various fish species before they enter the open ocean.
The dunes at Siriú are among the tallest in the Santa Catarina state, reaching significant elevations.
Southern Right whales typically frequent the waters offshore between July and November.
The beach is part of a federally protected environmental zone intended to preserve local biodiversity.
Praia do Siriú is distinguished by its expansive white sand dunes that separate the ocean from the Siriú River. The beach features a unique confluence where freshwater from the lagoon meets the Atlantic surf. It is located within the northern section of Garopaba, Santa Catarina, maintaining a lower population density than neighboring beaches. The area is a recognized breeding ground for Southern Right whales during their migration season. The sand dunes are frequently used for sandboarding activities. The coastal ecosystem includes diverse restinga vegetation native to the southern Brazilian coast.
The crest of the highest sand dune looking toward the point where the lagoon empties into the ocean.
Bring your own sandboard if you intend to slide the dunes, as equipment rentals are not always available on-site.
Pack adequate hydration and snacks, as infrastructure and kiosks are limited compared to urban beaches.
Apply high-SPF sunscreen as the reflective surface of the white sand increases UV exposure.
Do not attempt to drive vehicles onto the dunes, as this is restricted and damages the ecosystem.
Practice leave-no-trace principles, especially on the fragile dune systems; avoid walking on vegetation.
