The beach is located exactly at the mouth of the Acaú River, which marks the natural border between the states of Paraíba and Pernambuco.
The water at the river mouth is brackish, resulting from the consistent mixing of freshwater and saltwater.
During extreme low tides, the receding ocean water reveals extensive sandy flats and natural pools suitable for wading.
The area is largely undeveloped, lacking the high-density high-rise resorts found in the nearby capital of João Pessoa.
Praia de Acaú is situated in the municipality of Pitimbu, Paraíba, at the mouth of the Acaú River. The location is characterized by the convergence of river and ocean waters, creating a calm estuarine environment. Its geography features natural pools formed by reef barriers during low tide. The beach is bordered by extensive coconut groves and rustic vegetation. Unlike more urbanized beaches in the region, Acaú maintains a semi-deserted landscape. It serves as a natural border point between the states of Paraíba and Pernambuco. The area is frequented by locals for its peaceful surroundings and natural water conditions. The shoreline is relatively narrow and subject to significant tidal variance.
The sandbar formed at the river's mouth during low tide, looking toward the meeting point of the river and the Atlantic Ocean.
Check the local tide table before visiting, as the natural pools and swimming conditions are only optimal during low tide.
Bring your own food and water supplies, as infrastructure and kiosks are extremely limited or non-existent in certain stretches.
Use 4x4 or high-clearance vehicles if you intend to drive directly onto the sand, as the terrain can be soft.
Attempting to swim during high tide when currents near the river mouth can become unpredictable.
Casual beach attire; pack out all trash to maintain the pristine, undeveloped environment.