The dunes are formed by wind-driven sediment accumulation, resulting in a constantly changing topography.
The area is an important habitat for endemic vegetation that helps stabilize the dune edges against erosion.
The Siriú Lagoon located nearby is a nursery for various fish species and serves as a natural stop for migratory birds.
Dunas do Siriú consists of a vast stretch of mobile sand dunes located between the Atlantic Ocean and the Siriú Lagoon. The site is a primary destination for sandboarding, with slopes varying in height and difficulty suitable for beginners and experienced riders. The ecosystem is characterized by shifting white sands that undergo constant modification due to prevailing winds. It serves as a natural barrier protecting the adjacent Siriú coastal environment. The area is part of the broader Garopaba coastal region, known for its significant natural preservation status. Visitors gain access to panoramic views extending toward the southern coastline.
The highest peak of the central dunes looking toward the ocean at sunset.
Bring a wax block for your sandboard to improve slide speed on dry sand.
Wear sunglasses and a hat as the reflection of sunlight off the white sand creates significant glare.
Avoid leaving trash, as the dunes are a fragile, unprotected environmental site.
Attempting to drive motorized vehicles directly onto the dunes, which damages the ecosystem and is strictly prohibited.
Wear sturdy footwear until reaching the base of the dunes to avoid hot sand; carry out all personal waste.
