The sandbar is part of a complex estuarine ecosystem that changes shape due to oceanic currents.
The reddish color of the sand is derived from mineral deposits common in the region's sedimentary layers.
It is an official Marine State Park, subject to Brazilian environmental legislation for conservation.
The park provides a habitat for various marine organisms that rely on the tidal variations for nutrient cycles.
Visibility in the surrounding waters is highest during low tide windows in clear weather.
Areia Vermelha Marine State Park is a shifting sandbar located approximately 1.5 kilometers off the coast of Cabedelo in the state of Paraíba. The park spans 390 acres, becoming exposed only during low tide when it emerges from the Atlantic Ocean. Its surface is composed of fine, reddish-hued sand, which gives the location its name. The surrounding shallow, clear waters host diverse marine life, including small fish and coral formations. Access to the sandbar is restricted to boats or catamarans departing from the mainland. The park is a protected environmental area, strictly regulated to maintain its ecological balance. As the tide rises, the sandbar submerges, effectively limiting the time visitors can remain on the site. The landscape provides a unique panoramic view of the João Pessoa coastline and the mouth of the Paraíba River.
The edges of the sandbar where the red sand meets the turquoise water during the lowest point of the tide.
Wear water shoes to protect your feet from potential sea urchins or coral fragments on the seabed.
Bring waterproof protection for electronics, as you will need to wade through shallow water to board boats.
Apply high-SPF sunscreen, as there is absolutely no shade or natural cover on the sandbar.
Do not attempt to swim or reach the sandbar from the shore; currents are unpredictable and the distance is deceptive.
Access is dictated entirely by the tide table; no visits are possible during high tide.
Take all trash back to the mainland; touching or removing coral and marine wildlife is strictly prohibited.
