Areia Vermelha Marine State Park, Marine state park in Cabedelo, Brazil.

Areia Vermelha Marine State Park is a 156-hectare protected area in Cabedelo, Paraíba, centred on a sandbank about 2 km long and 1 km wide that emerges only at low tide, roughly 1 km from Praia de Camboinha. The sandbank is separated from the open sea by a line of reefs and is ringed by corals and natural pools of clear, light-green water.

The park was established by the state of Paraíba in 2000 through a decree to protect marine resources in the region. Its creation marked an important step in regulating tourism and preserving the coral reef system for future generations.

The sandbank takes its name from its reddish sand, exposed only at low tide about 1 km off Praia de Camboinha. Until November 2015 bar boats anchored here serving food and drink, with tables, chairs, grills and music on the sand; a conduct adjustment agreement ended this, and since January 2016 visitors must leave food and drink aboard the boats. Since early 2024 access requires prior booking, capped at 1,100 visitors a day.

The sandbank lies about 1 km off Praia de Camboinha and is reached by boat. Since early 2024, visits require prior booking, with a daily cap of 1,100 people. Walking on the surrounding corals is not advised, to prevent accidents and damage to the reef.

The sandbank lies about 1 kilometre (0.62 mi) off Praia de Camboinha and is separated from the open sea by a line of reefs that runs along the entire Paraíba coast. It is a sandbar, not an island, and only emerges at low tide.