Costa Azul was the first beach in the state of Rio de Janeiro to receive the international Blue Flag environmental certification.
The beach features a permanent wooden boardwalk spanning over 1.5 kilometers, connecting the urban center to the beach area.
The Emissário Submarino structure serves as a popular elevated viewpoint for whale watching during the migration season.
Local geological formations at the beach are part of the 'Costa do Sol' Geopark initiative.
The beach is strategically located near the mouth of the Jequiá River, which influences local water currents.
Praia Costa Azul is the most prominent beach in Rio das Ostras, known for its extensive wooden boardwalk and integration with local urban infrastructure. The beach features a mix of calm stretches for swimming and areas with moderate surf suitable for beginners. It is home to the Emissário Submarino, a structure that functions as a walkway extending into the ocean. The beach is a Blue Flag certified site, recognized for high standards in water quality, environmental management, and safety. Visitors have access to a variety of kiosks offering regional Brazilian cuisine along the shoreline. The coastline is characterized by a mix of golden sand and rock formations at the northern end. Lifeguard stations are permanently positioned along the strip to ensure visitor safety. The area hosts seasonal cultural events and outdoor festivals throughout the year. It remains one of the primary focal points for tourism in the municipality of Rio das Ostras.
The mid-point of the Emissário Submarino pier looking back toward the shore.
Walk the entire length of the wooden boardwalk during sunset for the best views of the coastline.
Stick to the areas marked by lifeguards, as the surf can develop strong currents depending on the tide.
Bring sun protection, as there is limited natural shade directly on the sand.
Do not swim near the rocky outcrops when the tide is rising, as waves can be unpredictable.
Standard beach attire is expected; public nudity is prohibited; dispose of trash in marked receptacles to maintain the Blue Flag certification.
