Lago Santo Amaro

Boat Ramps: 0
Access Points: 0
Species: 0

Lago Santo Amaro is a freshwater lake nestled within the remarkable Lençóis Maranhenses National Park along the equatorial coast of Maranhão, Brazil. The lake sits within one of the most visually stunning and ecologically unique protected areas in South America, where vast white sand dunes meet seasonal lagoons and freshwater systems. The substrate at Lago Santo Amaro is characteristically muddy, distinguishing it from some of the sandier water bodies found elsewhere in the park. This muddy-bottomed environment shapes the habitat structure, the fish communities that thrive there, and the fishing experience anglers can expect.

Species & education

Learn what type of fish are at Lago Santo Amaro and what's needed to catch them.

No species information available.

Fishing spots, boat ramps & amenities

Learn how to get on Lago Santo Amaro. Uncover great fishing access points, boat ramps, and all the facilities you need for an unforgettable day on the water. Some locations shown may border or include private property. Always check property boundaries and applicable regulations before visiting. onWater's Public & Private Land layer can help you plan your access with confidence.

The muddy-substrate environment of Lago Santo Amaro itself is the primary fishing area. The lake's muddy bottom supports foraging activity by catfish and tilapia, while any available structure — submerged vegetation, shoreline edges, and transitional depth zones — will concentrate predatory species like peacock bass. Shoreline areas and any points or coves within the lake are worth targeting for tucunaré.

Know where you can legally fish on Lago Santo Amaro

See public and private land boundaries along the water, turn on private parcels with owner details to know where permission is required, and find land-trust parcels that offer permitted fishing access.

Maranhão licenses and regulations

No licenses or regulations available for Maranhão.

Take Lago Santo Amaro with you

The onWater Fish app keeps this water's access points, species and conditions in your pocket, with the tools you use once you're there.

Use the map without signal
Download the map around Lago Santo Amaro to use it offline when coverage drops.
Log your catches here
Keep a private fishing journal for Lago Santo Amaro to find where and when fish are biting for you.
HD depth charts from Garmin
Find drop offs, ledges, channels, points and shallow flats with Garmin depth charts in the app.