The lagoon is an estuarine environment, mixing freshwater from local streams with saltwater from the Atlantic Ocean.
The Costa da Lagoa settlement is accessible only by boat or hiking trails, preserving a traditional lifestyle free from vehicular traffic.
The lagoon sits at the intersection of the island's two major geological formations, the crystalline basement and the coastal sedimentary plain.
Local archaeological sites around the lagoon have revealed evidence of early Sambaqui (shell mound) builders who inhabited the region thousands of years ago.
The water depth varies significantly, with some sections reaching only a few meters while others are deeper, influenced by tidal cycles through the Barra channel.
Lagoa da Conceição is a vast brackish-water lagoon located in the center of Florianópolis, acting as a natural hub for the island's tourism and watersports. The lagoon is connected to the Atlantic Ocean via a narrow channel known as the Barra da Lagoa. It is surrounded by hilly terrain and serves as a primary access point for protected beaches like Praia da Joaquina and Praia Mole. The area features a dense concentration of restaurants, bars, and local artisanal shops lining the waterfront. Boat tours operate regularly, connecting the main district to the isolated eastern shore communities such as Costa da Lagoa. The ecosystem supports significant biodiversity, including various species of fish and migratory birds. Watersports enthusiasts frequent the area for windsurfing, kitesurfing, and stand-up paddleboarding due to the protected, calm conditions. The lagoon's geography creates a distinct microclimate compared to the more exposed coastal areas of the island.
The viewpoint overlooking the lagoon (Mirante da Lagoa) on the road leading from the center of the island.
Take the public boat taxi to reach the isolated restaurants in Costa da Lagoa for a more authentic local dining experience.
Rent stand-up paddleboards during the early morning hours when the wind is at its lowest intensity.
Explore the nearby sand dunes of Joaquina, which are easily accessible from the lagoon's southern banks.
Avoid swimming in the water near the urban center of the lagoon, as water quality can vary significantly due to runoff.
Casual beach attire is standard, but wearing a shirt and footwear is expected inside indoor dining establishments.